Lately, it's mostly been about Superman trying to stop various bad guys from assuming elected office. Lex Luthor was president in the comics just a few years back. One of the few good/amusing 4th season Lois & Clark episodes had another baddie becoming president owing to mass mind control (taking over from Fred Willard, of all people).
Martha Kent is a state senator (a.k.a. an excuse to not show an older female actress) in Smallville, but there's not a "Superman" being exploited there.
Check out this classic tale, The Man Who Would Be President, written by a guy who later went on to run for public office (and is running for office today):
https://www.supermanthroughtheages.com/tales3/president/In the 50s/60s, he was "tight" with most figures of authority, notably JFK:
http://www.dialbforblog.com/archives/166/And probably his first political encounter was where he broke into the governor's place to save someone on death row. But in that era, the politicians were probably more afraid of him than seeking his blessing.