Thet said the same ting about Reagan in reverse. “He is personally popular, but people don’t like his policies.”
These economic polls show that the American people seem to be coming to terms with the fact that they may not like Trump personally, but they do like his track record on the most crucial issue: the economy. This is literally the "competency over likability" winning formula.
More importantly, the Democrats have long made it clear that they were going to do whatever they could to make Trump and his personal unpopularity their biggest issue in the midterms.
That seemed like a pretty good bet for months, as polls showed the Democrats with unusually large leads in generic congressional election polls. Now that trend has started to reverse at about the same time that Trump's numbers began to get a boost.
But that's not the correlation to focus on the most. It's crucial to remember this is still not about personal popularity. The most dramatic positive move in the polls recently is not for Trump personally, but for his signature tax reform law.
That's what makes this a double whammy for the Democrats. They can't counterattack these economic developments and perceptions simply by continuing their attacks on Trump. It's not Trump the voters are increasingly supporting or even focusing on, it's his policies.