White House chief economic adviser Gary Cohn said Sunday he was confident congressional Republicans will muster the votes to pass their tax reform proposal by the end of 2017.

"I'm confident that we're going to get votes," Cohn told Fox News' "Sunday Morning Futures." "We got the bill out of the [House] Ways and Means Committee with 24 votes on Thursday last week, it was 24-16."

The House is expected to vote on its tax plan this week and the Senate Finance Committee is also scheduled to vote their proposal out of committee by Friday, Cohn explained.

"I think the elections once again are screaming at Washington, saying 'Look, we want you in Washington to get things done and legislate," Cohn said of Tuesday's elections in which Democrats won gubernatorial races in Virginia and New Jersey. "This why we have to get tax reform done."

He urged critics to consider the measures in their "entirety," reiterating the Trump administration believes they would spur enough economic growth and revenue to pay for the tax cuts and reduce the national debt.

He added he was not concerned about fears eliminating local and state deductions would result in a mass exodus from places like New York because of the growth experienced in Florida and Texas, which offer more competitive tax differentials.

Cohn, who was rumored to be seeking an appointment as chairman of the Federal Reserve, said he was "excited" by President Trump's nomination of Jay Powell for the position.

He also batted back speculation he would leave the White House after Trump signed tax legislation.

"I'm really happy executing the president's economic agenda. I think we're making an enormous amount of progress," he said.