Democrats running in competitive Senate elections appear to have shied away from President Joe Biden ahead of the November election despite voting in step with his agenda. The Democrats — all of which are running in either red or battleground states — have largely abstained from mentioning Biden in social media posts across their accounts on X, formerly Twitter, since announcing their respective runs for 2024. None of the Democrats have explicitly endorsed the president’s reelection bid, but overwhelmingly voted with Biden in 2023. Vulnerable Democratic Sens. Jon Tester of Montana, Sherrod Bro…