Top Republican warns Trump against making a deal with Iran: 'Finish the job'

A top Senate Republican is publicly pressuring President Donald Trump against pursuing what he described as a weak Iran deal as administration officials signal negotiations with Tehran are making progress. 

Sen. Roger Wicker, R-Miss., chairman of the Senate Armed Services Committee, issued a sharply worded warning Thursday urging Trump not to abandon military pressure on the Iranian regime in favor of diplomacy.

"We are at a moment that will define President Trump’s legacy," Wicker said in a statement.