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When House and Senate primary season began on March 5, Super Tuesday, President Joe Biden was running for reelection and Nikki Haley was still vying for the Republican presidential nomination.
To say a lot has changed over the past six months is an understatement. In a presidential year, congressional primaries can get lost with the relentless focus on the top of the ticket. But the winners and losers of the primaries, which came to an end this week with contests in New Hampshire, Delaware and Rhode Island, also provide important clues about the state of politics today.