North Carolina Senator Thom Tillis announced he would not seek re-election after Donald Trump attacked him for not supporting Trump's unpopular budget bill. The departure gives North Carolina Democrats and opportunity to flip a seat from Republicans who already barely hold the majority.

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

A new analysis from the nonpartisan Congressional Budget Office said the package would increase the deficit by nearly $3.3 trillion over the decade.