Martin Trevor Heinrich (/ˈhaɪnrɪk/ HYNE-rik; born October 17, 1971) is an American businessman and politician serving as the senior United States senator from New Mexico, a seat he has held since 2013.

[8] From 1996 to 2001 Heinrich served as executive director of the Cottonwood Gulch Foundation, a New Mexico nonprofit organization dedicated to educating young people on natural science and the environment.

He served as executive director of the Cottonwood Gulch Foundation,[27] a New Mexico nonprofit organization dedicated to educating young people on natural science and the environment, and founded his own public affairs consulting firm.

[30] In April 2019 Heinrich was one of three Democratic senators who joined Republicans to vote to confirm David Bernhardt, a former oil executive, as Secretary of the Interior Department.

[32] Heinrich was a member of the Senate Democrats' Special Committee on the Climate Crisis, which published a report of its findings in August 2020.

[39] He also supported bills to create a national standard for the concealed carrying of firearms across state lines, co-sponsored legislation that would ease the restrictions on the sales of firearms across state lines, and called for the repeal of the Dickey Amendment, which prevents government research into curbing gun violence.

[41] In 2008 the New Mexico Republican Party criticized Heinrich for his work on the creation of the Ojito National Wilderness, which they said amounted to unregistered lobbying.

[43] During his time in Congress he has maintained strong opposition to the war in Iraq, and supported a swift end of combat operations in Afghanistan.

[45] Heinrich announced that he would leave the House to run for the United States Senate seat held by Jeff Bingaman, who retired at the end of his term.

[citation needed] Heinrich was reelected to a second term in 2018 over Republican Mick Rich and Libertarian Gary Johnson.

Heinrich was participating in the certification of the 2021 United States Electoral College vote count when Trump supporters stormed the U.S. Capitol.

He returned to the chamber to tell people what he saw: "an out of control mob climbing over things, waving Confederate flags, just clearly bent on breaking into the west side of the Capitol.

[58] In the wake of the attack, Heinrich said invoking the Twenty-fifth Amendment to the United States Constitution and/or impeachment would be appropriate to remove Trump.

[56][59] On April 17, 2013, Heinrich voted to expand background checks for gun purchases,[60] and against regulating assault weapons.

[61] In response to the 2017 Las Vegas shooting, Heinrich said that Congress should pass legislation to combat gun violence.

[62] On September 27, 2013, Heinrich voted to restore funding for the Patient Protection and Affordable Care Act as part of an amendment to legislation funding government operations for 45 days, and which also omitted House-passed language prioritizing debt payments if Congress fails to increase the nation's borrowing limits.

[66] In January 2024, Heinrich voted for a resolution, proposed by Bernie Sanders, to apply the human rights provisions of the Foreign Assistance Act to U.S. aid to Israel's military.

[67] In November 2024, Heinrich was one of 19 senators to vote to block the United States' arms sales to Israel.

[68] On July 19, 2024, Heinrich called for Joe Biden to withdraw from the 2024 United States presidential election.

[71] On April 15, 2020, the Trump administration invited Heinrich to join a bipartisan task force on reopening the economy amid the COVID-19 pandemic.

After the trip, Heinrich told reporters that he and Flake, a Republican, decided to do it to demonstrate that politicians from different political parties can work together, in their case to survive.