Kyrsten Lea Sinema born July 12, 1976 is an American politician serving as the senior United States Senator from Arizona since January 2019. A Democrat, she served three terms as a state representative for Arizona's 15th legislative district from 2005 to 2011, one term as the state senator for Arizona's 15th legislative district from 2011 to 2012, and three terms as the United States Representative for Arizona's 9th congressional district from 2013 to 2019.

Sinema began her political career in the Arizona Green Party and rose to prominence for her progressive advocacy, supporting causes such as LGBT rights and opposing the war on terror. She left the Green Party to join the Arizona Democratic Party in 2004 and was elected to a seat in the United States House of Representatives in 2012. After her election, she joined the New Democrat Coalition, the Blue Dog Coalition and the bipartisan Problem Solvers Caucus, amassing one of the most conservative voting records in the Democratic caucus. She won the 2018 Senate election to replace the retiring Jeff Flake, defeating Republican nominee Martha McSally. Sinema is the first openly bisexual and the second openly LGBT woman (after Tammy Baldwin of Wisconsin) to be elected to the House of Representatives and to the Senate in 2013 and 2019, respectively. She also was the first woman elected to the Senate from Arizona.

Sinema is considered a moderate Democrat and a proponent of bipartisanship. During the 116th Congress, she voted with President Donald Trump's position roughly 25% of the time, the third-most of any Democratic senator, behind Joe Manchin and Mark Kelly.

WASHINGTON — Arizona Sen. Kyrsten Sinema, a Democrat, sided with Republicans and seven other senators from her party to vote down a minimum wage increase amendment to President Joe Biden's $1.9 trillion coronavirus relief bill. It was the way she did it that drew condemnation on social media and some comparisons to the late John McCain.

Sinema stood on the House floor and flashed a thumbs down when her name was called to vote. While hand signals are not an uncommon way for senators to vote, some thought it was callous given the nature of the vote.

Hand gestures have been more frequently used during the COVID-19 pandemic while lawmakers wear masks during their votes. Sen. Mark Kelly, Arizona's other Democratic senator, used a thumbs up to register his support for the amendment on Friday.

Sinema's actions were reminiscent to many of a similar move by the late Sen. John McCain, R-Ariz., whose thumbs-down on a move by Republicans to overturn the Affordable Care Act in 2017 became an iconic moment.

Sinema's name trended on Twitter alongside McCain's on Friday. Some drew comparisons between the lawmaker because they voted against their own parties. Others said Sinema's vote would hurt workers strapped in a challenging economy, as opposed to McCain's vote to preserve health care for many.

What we know: The Senate is debating Biden's COVID stimulus bill. When can you expect help?

Sinema said in a statement explaining her vote that she believes the minimum wage hike should be worked on as an issue separate from the COVID-19 relief bill.

"No person who works full time should live in poverty," Sinema said. "Senators in both parties have shown support for raising the federal minimum wage and the Senate should hold an open debate and amendment process on raising the minimum wage, separate from the COVID-focused reconciliation bill."

The amendment was introduced by Sen. Bernie Sanders, I-Vt., backed by other progressive senators. He pushed the amendment forward after the Senate's parliamentarian ruled the measurecould not be included. The parliamentarian said the provision raising the wage from $7.25 to $15 by 2025 would have to be removed and considered as a standalone bill or as part of other legislation.

The other Democrats to vote against the amendment were Sens. Chris Coons, D-Del.; Tom Carper, D-Del.; Jon Tester, D-Mon.; Jeanne Shaheen, D-N.H.; Maggie Hassan, D-N.H.; and Joe Manchin, W.V. Sen. Angus King of Maine, an independent who caucuses with Democrats, also voted against the minimum-wage amendment.

Critics said Sinema's thumbs down displayed insensitivity. Some were confused by her vote given her previously stated support for an increase in wages, including some progressive lawmakers.

Rep. Ilhan Omar, D-Minn., said Sinema's perceived change from a 2014 tweet supporting increased wages to "gleefully voting no is really disturbing."

Imagine having the nerve, Rep. Alexandria Ocasio-Cortez, D-N.Y., wrote on Twitter, "to go home and ask minimum wage workers to support you after going back on your own documented stance to help crush their biggest chance at a wage hike during their longest drought of wage increases since the law’s very inception."

"Did Sinema really have vote against a $15 minimum wage for 24 million people like this?" asked Sawyer Hackett, a senior adviser to former Housing and Urban Development Secretary Julián Castro.

What do Republicans dislike so much? Biden's relief bill isn't getting the bipartisan support of previous stimulus packages.

The Senate stalled for about nine hours on Friday while senators negotiated proposed changes to the stimulus package's unemployment benefits, amid voting on a flurry of amendments dubbed a "vote-a-rama." The chamber is poised to press forward after Manchin said he would support a compromise deal.

Contributing: Ledyard King, Nicholas Wu and Savannah Behrmann, USA TODAY; Yvonne Wingett Sanchez, The Arizona Republic