The lead Republican negotiator on a bipartisan U.S. Senate bill toughening border security and providing aid to Ukraine said his caucus is expected to decide by February 6 whether to open debate on the proposal. Senator James Lankford (Republican-Oklahoma) told Reuters that if the bill is not supported by both parties, then "we shouldn't be doing this." Prominent Republicans including Donald Trump -- the front-runner for his party's presidential nomination -- and House Speaker Mike Johnson (Republican-Louisiana) have voiced opposition. The bill includes $118 billion in new spending, including $60 billion worth of aid to Ukraine.