Related to Trump approval rating, article (which is free access) also has this "it's the economy stupid" info., with another graph:

[....] The poll seeks to follow whether likely voters feel better or worse off since Donald Trump became president in 2017. Ronald Reagan defeated Jimmy Carter in 1980 by asking voters: “Are you better off than you were four years ago?”

Guy Cecil, chairman of Priorities USA, the Democratic super political action committee, said: “What we consistently find is that one of the most powerful indicators of whether we can move somebody to vote against Donald Trump is how they feel about Donald Trump’s impact on their personal economic situation.”

The latest poll found that 38 per cent of voters said they were better off financially now, compared to when Mr Trump took office in January 2017 — a figure largely unchanged from last month.

But the poll also demonstrated the persistent “gender gap” in voters’ attitudes towards the president, particularly among older voters. Half of men over the age of 55 said they were better off under the Trump administration, compared to 30 per cent of women of the same age. Among voters between the ages of 18 and 54, 44 per cent of men reported being better off, compared to 32 per cent of women.

Mr Trump has staked his re-election bid on a strong US economy, and has bristled at suggestions that the government’s handling of the coronavirus crisis is to blame for the recent market sell-off, at one point saying investors were spooked by the most-recent Democratic presidential debate [....]