However, Congress should be more of a check on Trump, most US voters agree, by 58 to 27 percent.
The president now faces accusations of incompetence and ill-preparedness to handle the top job while having put together several legal teams to handle accusations of rape and his alleged "collusion" with Russian Federation.
"Anytime we're talking about tax cuts and the growing economy, we're winning", said Matt Gorman, a spokesman for the National Republican Congressional Committee, the party's main campaign support for House Republican candidates.
"Every single year you have Republican House, Senate [and] president, there will be a tax cut", he said.
Americans for Tax Reform President Grover Norquist told FOX Business that the new round of tax cuts will allow middle-class Americans to save more tax-free for their day-to-day expenditures and retirement.
And even some House Republicans oppose a new tax bill. About half of independents and about a third of Democrats say such behavior is inappropriate. Republicans have Trump to thank for that; his approval rating is at a meager 39 percent amongst participants.
Trump previously had openly questioned whether the 2018 midterm elections, where Republicans stand to lose control of Congress, even mattered. In the last three midterm elections - 2006, 2010, and 2014 - the party in the White House saw massive losses in Congress.
Strong economic growth also doesn't seem to be winning over new voters for Trump, however.
"Passage is not automatic", he added. All but one were from high-tax Democratic states such as New York, New Jersey and California.
The legislation would permanently lower the tax rates for individuals as well as preserve a larger child tax credit and the approximately $22 million estate tax exemption for couples, which was doubled in the 2017 law.
Under Trump and the Republican-controlled Congress, the federal deficit has begun growing rapidly again and is expected to blow through $1 trillion in 2019. In West Virginia, a poor and heavily white state which Donald Trump won by 40 points, Democrat Joe Manchin seemed like a sure pick-up for the GOP.