President Trump has a 45% approval rating in the latest Gallup poll, the highest since late January, but it's around the same percentage that past presidents had going into a midterm election in which they lost dozens of seats.

Why it matters: His approval increased by one percentage point each week in two previous polls, then jumped up three points in the most recent poll. As the Cook Political Report's Charles Cook writes: this 45% "needs to be the beginning of an upward trend through November if he hopes to salvage this House majority."