Warsh, 55, had met with Trump at the White House, a source later told Reuters. This time around Trump made support for lower rates one of his explicit criteria for a Fed chair candidate. A schedule for the president released by the White House late on Thursday did not point explicitly to such an event. ​The White House calendar for Trump showed a late-morning executive order signing session and a mid-afternoon policy meeting. INTENSE SCRUTINY FOR WARSHTrump's Fed chair pick may face another challenge as well: One ‌key lawmaker in Trump's Republican Party, Senator Thom Tillis of North Carolina, has threatened to block any Fed nominees until the DOJ investigation is resolved.