ANALYSIS — Increased concern about the likelihood of an economic slowdown, new questions about President Donald Trump’s standing with voters, and a special election in Georgia certainly give Democrats some reason for optimism about next year’s fight for the Senate.

But while the Senate map surely is better for Democrats in 2020 than it was last cycle, the party will need an upset or two to win control of the chamber next November.

The national dynamic looks to be a problem for the president’s party. An Aug. 11-13 Fox News poll had Trump’s job rating at 43 percent approve/56 percent disapprove. The Democratic Party had a net favorable of 6 points (51 percent favorable/45 percent unfavorable), while the GOP had a net unfavorable of 13 points (41 percent favorable/54 percent unfavorable.

Trump’s personal rating was 42 percent favorable/56 percent unfavorable, while former President Barack Obama’s personal rating was a much stronger 60 percent favorable/37 percent unfavorable.

These are national ratings, of course, but they could well reflect similar changes in crucial states with competitive Senate races next year.