Visit by Maryland’s Chris Van Hollen comes as a federal appeals court rules against the Trump’s administration’s efforts to block return to the US

Hello and welcome to the US politics live blog. My name is Tom Ambrose and I’ll be bringing you all the latest news over the next few hours.

We start with news that Maryland senator Chris Van Hollen met in El Salvador with Kilmar Ábrego García, a man who was sent there by the Trump administration in March despite an immigration court order preventing his deportation.

James Comer, the chair of the House oversight committee, and Elise Stefanik, chair of the House Republican leadership, have launched an investigation into Harvard University, accusing the university of a “lack of compliance with civil rights laws”.

Elon Musk’s SpaceX and two partners have emerged as frontrunners to win a crucial part of Donald Trump’s “Golden Dome” missile defense shield.

The supreme court said it will hear arguments next month over Donald Trump’s bid to restrict automatic birthright citizenship.

In their unanimous opinion issued today, a US appeals court warned the Trump administration that battles against the judiciary could undermine public confidence.

After weeks of strong rhetoric, the president told reporters in the Oval Office on Thursday that he thought trade deals could be finished in the “next three or four weeks”.

Trump on Thursday extended a government-wide federal hiring freeze that was set to expire this weekend.

The Washington DC headquarters for the Department of Housing and Urban Development may soon be up for sale.