President Joe Biden issued the first veto of his presidency Monday in an early sign of shifting White House relations with the new Congress since Republicans took control of the House in January — a move that serves as a prelude to bigger battles with GOP lawmakers on government spending and the nation’s debt limit.

Biden sought to kill a Republican–authored measure that would ban the government from considering environmental impacts or potential lawsuits when making investment decisions for people’s retirement plans. In a video released by the White House, Biden said he vetoed the measure because it “put at risk the retirement savings of individuals across the country.”

His first veto represents a more confrontational approach at the midway of Biden’s term in office, as he faces a GOP–controlled House that is eager to undo parts of his policy legacy and investigate his administration and his family. Complicating matters for Biden, several Democratic senators are up for re–election next year in conservative states, giving them political incentive to put some distance between them and the White House.

The measure vetoed by Biden would have effectively reinstated a Trump–era ban on federal managers of retirement plans considering factors such as climate change, social impacts or pending lawsuits when making investment choices.

The veto could also help calm some anger from environmentalists who have been upset with the Biden administration for its recent decision to greenlight the Willow oil project, a massive and contentious drilling project in Alaska.

“The president vetoed the bill because it jeopardizes the hard–earned life savings of cops, firefighters, teachers, and other workers,” White House spokesperson Robyn Patterson said.