WASHINGTON — A strong majority of Americans blame President Trump for the record-long government shutdown and reject his primary rationale for a border wall, according to a new poll that shows the turmoil in Washington is dragging his approval rating to its lowest level in more than a year.

Overall, 34 percent of Americans approve of Trump’s job performance in a survey conducted by The Associated Press-NORC Center for Public Affairs Research. That’s down from 42 percent a month earlier and nears the lowest mark of his two-year presidency. The president’s approval among Republicans remains close to 80 percent, but his standing with independents is among its lowest points of his time in office.

“Trump is responsible for this,” said poll respondent Lloyd Rabalais, a federal contractor from Slidell, Louisiana, who’s not affiliated with either party.

The 47-year-old has been furloughed for more than a month. He said he’d need to start drawing on his retirement savings next week to pay his bills if the shutdown continues.

“I do support a wall, but not the way he’s handling it,” Rabalais added. “Trump guaranteed everybody that Mexico would pay for the wall. Now he’s holding American workers like me hostage.”

The drop in approval comes as Trump begins the third year of his presidency under the weight of the longest government shutdown in U.S. history, an international trade war that’s straining the global economy and new revelations about his push for a real estate deal in Russia during his 2016 campaign.

Compared with earlier presidents, Trump’s approval rating has been relatively stable over the course of his presidency, ranging from the mid-30s to the mid-40s.

By contrast, President Barack Obama never fell below 40 percent in polling by Gallup. Still, five presidents since Gallup began measuring presidential approval have had their rating fall into the 20s at least once, including Harry S. Truman, Richard Nixon, Jimmy Carter, George H.W. Bush and George W. Bush. Trump has never fallen into that range of historic lows, but he’s also the only president never to have reached 50 percent in Gallup polling.

The new poll shows most Americans see the shutdown as a major problem, and they blame Trump far more than congressional Democrats for the mess that has ensnared the lives of roughly 800,000 government workers who are going without pay.

Sixty percent of Americans say Trump bears a great deal of responsibility for the shutdown.