WASHINGTON — Six in 10 Americans want the new House Democratic majority to obtain and release President Donald Trump’s tax returns, according to a poll released Sunday.

In an ABC News/Washington Post poll, 60 percent supported such efforts, which have been led by Rep. Bill Pascrell Jr., with only 35 percent in opposition. Trump is the only president in more than four decades to refuse to release his returns.

Majorities also supported investigations into possible collusion between the Trump campaign and Russia, communications between Trump and Russian President Vladimir Putin, and any financial ties between Trump and foreign governments.

The poll was released following a record-long 35-day federal government shutdown following Trump’s refusal to sign a spending bill without more than $5 billion in taxpayer funds for a southern border wall he promised Mexico would pay.

Pascrell, a member of the tax-writing House Ways and Means Committee, has led House Democratic efforts to obtain Trump’s tax returns, which he said could reveal any possible conflicts of interest, such as investments in Russia and Saudi Arabia. In addition, they could show how much he personally benefitted from the tax law he and congressional Republicans pushed through in 2017.

“It’s no surprise that an overwhelming majority of Americans want Trump to finally face real oversight and real scrutiny," said Pascrell, D-9th Dist. “The election results told us as much. I have pursued this cause for two years because Americans are entitled to know if their president entered office with strings attached. Ways and Means Democrats must use our authority and obtain his business and personal tax returns. It is our responsibility.”

Pascrell’s previous attempts to force release of the returns under a 1924 federal law enacted after the Teapot Dome scandal were blocked by House Republicans when they were in the majority, but new House Speaker Nancy Pelosi, D-Calif., has said that there was “popular demand for the Congress to request the president’s tax returns.”

The poll of 1,001 adults was conducted Jan. 21-24 and had a margin of error of 3.5 percentage points.

Jonathan D. Salant may be reached at jsalant@njadvancemedia.com. Follow him on Twitter @JDSalant or on Facebook. Find NJ.com Politics on Facebook.