“I am very, very thankful that he decided not to pursue it," she told reporters.

Sen.(R-Iowa), a member of leadership, said on Thursday that she was "very, very thankful," that the president had reversed course on nominating Moore to the Federal Reserve Board.

The decision, which the President Trump announced in a tweet on Thursday, lets Republican senators avoid what was shaping up to be a showdown with Trump after several female senators, members of GOP leadership and traditional Trump allies began publicly airing their doubts about Moore this week.

Senate Republicans breathed a sigh of relief Thursday overwithdrawing his name from consideration from the Federal Reserve Board, and urged the Trump administration to do a better job vetting potential nominations.

Asked what she hoped the administration learned from the incident she added, "Vetting, vetting, vetting."

"The bottom line is they need to vet all of that even before they forward a name or float a name out there. ... Please do some research," said Ernst.

Republicans have a 53-47 majority, meaning Moore could have only lost three GOP senators and still won confirmation, with Vice President Pence breaking a tie vote.

"Yeah, vet better," he added, asked if there was a takeaway from the White House on vetting.

Vetting nominations, and consulting with senators about a pick, has emerged as a sticking point between Trump and Senate Republicans, who are increasingly expressing frustration about being caught off guard by names being floated by the White House.

Asked if he thought the administration was currently doing vetting by floating names and seeing if someone could get confirmed, he added, "seems like it."

The setback on Moore, who had emerged as a headache for Republicans on Capitol Hill, comes less than two weeks after Herman Cain also withdrew his name from consideration to the Fed board and only hours after Moore appeared to dig in for a fight with the Senate.

He told Bloomberg News that he he and the White House were "all in" on nominating him to the Federal Reserve Board.

“My biggest ally is the president,” Moore added. “He’s full speed ahead.”