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Tracking traffic in the Strait of Hormuz, in maps and charts

(CNN) — Traffic through the Strait of Hormuz – the vital shipping lane at the heart of the US-Iran conflict – is again plummeting as the ceasefire agreed on June 17 appears to have broken down.

Traffic had slowly been picking up, but after Iran struck three vessels near the Strait on July 7, the conflict escalated with the US resuming airstrikes on the country. On July 12, Iran declared the waterway closed and the next day US President Donald Trump responded by insisting the Strait is still open, but reinstated a naval blockade against ships transiting to or from Iranian ports.

CNN is tracking the strait’s traffic volumes in maps and charts.

The conflict between the US and Iran has devolved into a “very determined fight over who controls the Strait of Hormuz,” said Mehran Kamrava, professor of government at Georgetown University in Qatar.

Iran aims to control traffic by demanding ships use a route that goes through its territorial waters, while Oman and UN’s International Maritime Organization have proposed an alternative shipping lane hugging the Omani coastline.

Iran rejects this route and has repeatedly carried out attacks on ships using it, including as recently as overnight Monday into Tuesday. Two tankers reported being hit by missiles while transiting the strait via the Oman route, the UK Maritime Trade Operations center said.

Since the US-imposed blockade was first lifted two weeks ago, Iran has exported roughly 80 million barrels of crude oil and refined products, worth more than $6 billion, according to an analysis by TankerTrackers from July 13, while other gulf countries have struggled to move their exports.

The US reimposed sanctions on Iranian oil sales on July 7, and the renewed naval blockade came into effect on Tuesday, July 14.

Read more about how the conflict in the war in Iran is affecting global oil prices, and the price of gasoline in the US here:

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South Carolina to hold first 2028 Democratic presidential primary

▶ Watch Video: Democrats expected to approve South Carolina as first primary in 2028, but other states pushing back Democrats on Saturday approved a new presidential nominating calendar for 2028, cementing South Carolina's place as the first official Democratic primary state, as the party looks to elevate states that better reflect its diverse coalition of voters.The vote came during the Democratic National Committee's summer meeting in Austin, where members signed off on a schedule that begins with South Carolina on Jan. 22, followed by Nevada on Feb. 1. New Hampshire, New Mexico, Michigan and Virginia round out the early-state lineup throughout February, all voting before Super Tuesday.The new calendar goes into effect amid a tug-of-war within the progressive and establishment wings of the party. It also continues a shift away from a tradition that for half a century gave states that are predominantly composed of White voters — Iowa and New Hampshire — outsized influence at the start of the nominating process. Strategists say the new calendar gives greater influence to Black and Latino voters, who make up key parts of the Democratic coalition. "If you're not strong with Latino voters or if you're not strong with Black voters, you know you can only get so far in this calendar," CBS News contributor and Democratic strategist Chuck Rocha said, adding that the schedule shows Black voters "the respect that they're due."Not everyone in the party is on board. Democratic leaders in Iowa and New Hampshire — previously the first and second states to hold primary contests, respectively — excoriated the new map as soon as the DNC's Rules and Bylaws Committee recommended it, arguing that it diminishes the role of states that have long taken on the responsibility of shaping the presidential nomination battlefield. "New Hampshire's First in the Nation primary is a tested proving ground in a closely contested swing state that forges better candidates and better presidents — and despite what DNC insiders say, that hasn't changed," New Hampshire's U.S. congressional delegation said in a statement. "As a state with highly engaged voters, we put candidates through their paces and thoroughly vet them. And our small size means that actually meeting and talking to voters takes precedence over super PACs or mega-donor-fueled campaigns."Momentum for South Carolina's ascension in the calendar traces back to 2020, when a victory there shifted momentum in the presidential primary that year to Joe Biden after he performed poorly in Iowa, New Hampshire and, to a lesser extent, Nevada. Under pressure from Biden and his allies, the DNC moved South Carolina's primary to first for the 2024 calendar. That cycle, New Hampshire defied the DNC's revised schedule and held its primary before South Carolina, citing a state law that mandates it hold the first primary. In response, the party stripped the contest of its sanctioned status. DNC Chair Ken Martin has signaled that if New Hampshire jumps ahead again in 2028, punishment will be more severe. "This is a calendar this party is actually going to protect," Martin told reporters after the DNC's Rules and Bylaws Committee met last month to propose a new schedule. The new calendar could impact the ideological battle within the Democratic Party between establishment moderates and more progressive candidates, including far-left democratic socialists. With no obvious 2028 front-runner, the newly approved schedule gives South Carolina, Nevada and the other four early states disproportionate influence over which faction can build early momentum in the 2028 presidential primaries. Among the states granted early slots, only Nevada and New Mexico offer clear advantages to progressives. Michigan has shown openness this cycle to progressives, with the primary victory of Abdul El-Sayed in the Senate race, but historically has elected more moderate candidates. New Hampshire voters have over time shown an openness to outsiders, but they typically have a more independent streak rather than a steep ideological lean. Progressives face an uphill battle in South Carolina, which has fewer of the White voters with college degrees who tend to support further-left candidates, and Virginia, which has long favored more moderate candidates. The decision to elevate states with large Black and Hispanic populations also comes as Democrats fight to stop the GOP from gaining ground with those two groups in general elections. President Trump won 48% of the Hispanic vote in 2024, up 12 points from four years earlier, and he won 15% of Black voters, almost double his share in 2020, according to the Pew Research Center. His share of non-Hispanic White voters remained stable, at 55%.
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