A Republican senator who was slammed by Trump after opposing his bill won't seek reelection. Another said the bill is testing the "soul" of the GOP.

U.S. Senate Republicans were struggling to pass President Donald Trump's sweeping tax-cut and spending bill early on Tuesday, amid deep divisions within the party about its expected $3.3 trillion hit to the nation's debt pile.

Thom Tillis of North Carolina, Susan Collins of Maine and Rand Paul of Kentucky — joined all Democrats in voting against it.