Congressional talks on US-Mexico border and Ukraine aid near collapse

Amid warnings soldiers may run out of ammunition, Senate minority leader Mitch McConnell said to abandon compromise

Painstaking negotiations over US border policy appear to be teetering on collapse, with the fate of US aid for Ukraine hanging in the balance as the Pentagon warns that soldiers on the frontlines of the war with Russia risk running out of ammunition.

The outlook for a deal appeared grim on Thursday, following reports that the Senate minority leader, Mitch McConnell, was walking away from a compromise that he suggested could “undermine” Donald Trump’s chances in a November general election against Joe Biden.