Sen. Kyrsten Sinema (D-Az.) on Wednesday endorsed former Vice President Joe Biden Joe BidenThe Memo: Warning signs flash for Trump on debates Senate Republicans signal openness to working with Biden National postal mail handlers union endorses Biden MORE for president following a series of resounding victories for the moderate Democrat in the Super Tuesday primaries.

Biden is a “pragmatic, practical leader best positioned to get things done for everyday families," Sinema said in a statement to 12 News. "We certainly don't agree on every issue; I always vote for Arizona first.

“Vice President Biden is authentic, genuine, and has a track record of building bipartisan coalitions to achieve results," she added. "Not all candidates in this race represent those Arizona values. Joe Biden does."

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Biden previously endorsed Sinema’s 2018 Senate campaign and fundraised for her in Phoenix.

Her endorsement comes as her fellow Arizona senator, Sen. Martha McSally Martha Elizabeth McSallyKelly's lead widens to 10 points in Arizona Senate race: poll Senate Republicans scramble to contain fallout from Woodward bombshell Mark Kelly apologizes for offensive 2018 joke MORE (R-Az.), has attempted to tie her likely opponent, Mark Kelly, to Sen. Bernie Sanders Bernie SandersSenate Republicans signal openness to working with Biden Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll Schumer, Sanders call for Senate panel to address election security MORE (I-Vt.).

“Kelly is quickly making the choice in this election very clear – a vote for Kelly is a vote for the Bernie Sanders socialist policies of government takeover of healthcare, open borders, and massive tax hikes on the middle class,” McSally campaign manager Dylan Lefler said in a statement announcing a February ad. “Mark Kelly will be Sanders's 51st vote in the Senate."