WASHINGTON (AP) — No president wants to give up the power and prestige that comes with the office after only one term, and Joe Biden is no exception. He’s pushing forward even though polls show a majority of Americans don’t want to see him run again. We went back to look at when modern presidents announced their decisions to seek a second term, what their Gallup approval ratings were at the time and how things turned out for them. One theme: Primary battles are a sign of whether a president will win reelection. That’s good news for Biden, who appears...