Tenure
In Congress, Green has focused on issues such as fair housing and fair hiring practices for the poor and minorities.
After the 2012 election, Green held a press conference in Houston at which he asserted that federal budget reform should be prioritized during the lame-duck session that year. He also announced a plan for infrastructure investments intended to create jobs, unify the country, and improve the economy.
Green has supported the Federal Reserve's program of quantitative easing and claims it has led to economic recovery since the 2008 financial crisis.
On May 17, 2017, Green presented articles of impeachment against President Donald Trump, citing Trump's firing of FBI Director James Comey. Immediately after his speech, he shelved the document without calling for a vote, but continued to call for impeachment. He reintroduced articles of impeachment on July 16, 2019, citing Trump's attacks on four Democratic congresswomen of color. As a privileged resolution, the House was required to vote on it. On July 17, the House voted to table the resolution, effectively killing it. The vote was 332–95, with 95 Democrats (40%) voting in favor of the resolution and all Republicans against it.
During the House Financial Services Committee hearing on April 10, 2019, at which the CEOs of all the major banks and investment institutions of the United States were sworn to testify, Green presented several questions, including whether any of the executives were not white men, whether they believed their likely successor would be female or a person of color, asking them to raise and lower their hands to indicate their responses. Green then asked J. P. Morgan CEO Jamie Dimon whether the institution he chaired had directly benefited from slavery, to which Dimon responded that it had, back in the 1800s.
On February 6, 2024, he left a hospital for a short time to vote from a wheelchair against the impeachment of Alejandro Mayorkas. The House failed to impeach Mayorkas that day, and the final vote was 214–216.
On March 4, 2025, during President Donald Trump's address to a joint session of Congress, in response to Trump calling his victory in the 2024 presidential election "a mandate", Green stood up, pointing his cane at the dais and shouted, "You have no mandate to cut Medicaid." House Speaker Mike Johnson ordered that Green be escorted out of the House Chamber by the sergeant-at-arms after repeatedly interrupting the address. The following day, Representative Dan Newhouse introduced, and the House moved forward a motion to censure Green for his actions the previous evening. Democrats failed to block the motion with a 209–211–1 vote. He was censured the next day on a vote of 224–198–2, with ten Democrats joining every Republican in voting in favor of the censure. During the aftermath of the vote's proceedings, he and several other Democratic representatives took to the House well to sing the civil rights anthem "We Shall Overcome", which resulted in House Speaker Mike Johnson calling for order and, later, a recess.
Green introduced articles of impeachment against Donald Trump in May 2025 for conflicts with the judicial branch. He brought another article of impeachment against Trump in June 2025 for the attack on Iran's nuclear facilities without Congressional approval. In November 2025, he again promised to and later did bring further impeachment articles against Trump for abuse of power, which were defeated in December 2025.
Green drew national attention, according to the New York Times, when he displayed a sign during President Donald Trump's February 2026 State of the Union address. The sign read, "Black people aren't apes!" Green was escorted from the House floor and later described his protest as "good trouble," a phrase associated with civil rights leader John Lewis.