By Manu Raju, Veronica Stracqualursi, CNN

(CNN) — President Donald Trump told Senate Democratic leader Chuck Schumer to “go to hell” in a Saturday post on social media as Senate leaders and the White House struggle to end a standoff over confirming Trump’s nominees.

Senate Republican leader John Thune, Schumer and the White House had been engaged in a round of intense talks to end the standoff over Trump’s nominees and let senators head home for the August recess, sources briefed on the conversations told CNN.

But Trump’s post Saturday signaled that talks have all but collapsed, as he wrote that Schumer’s demands were “egregious and unprecedented.”

Democrats have been slow-walking Trump’s lower-level nominees, forcing Thune to keep the Senate in session this weekend to confirm them. In

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