His average is actually about 43 to 44%band all his potential opponents are worthless
All his potential opponents are beating him in national polls and state battleground polls. His 2+ year average in the GALLUP poll is 40%. Bush had 48% in the Gallup poll when he was re-elected. Trump has NEVER been above 45% in the Gallup poll.
They are not beating him
None of his potential opponents can come close.
The closest is sanders and he has little to no chance.
In the latest state polls BIDEN leads Trump by the following margins:
Wisconsin: BIDEN 8 points over Trump
Michigan: BIDEN 8 points over Trump
Pennsylvania: BIDEN 10 points over Trump
Iowa: BIDEN 6 points over Trump
NATIONALLY: BIDEN 10 points over Trump
Biden has he largest leads over Trump and is averaging about 30% support among Democrats compared to Bernie Sanders 20% support. Oddly, Bernie Sanders staying power will help to block any newcomers from taking on BIDEN ensuring BIDEN wins the Democratic Nomination for President.