CNN election analyst explains exactly how Trump's unpopularity will translate into the GOP losing seats in midterms

Since winning the presidency while losing the the popular vote by historic figures, Donald Trump has consistently ranked among the most unpopular presidents since the advent of modern polling.

As Trump prepares for his second-ever Election Day as a political player, it remains to be seen how his party will fare.

On CNN Tuesday, nonpartisan election analyst Harry Enten broke down Trump's approval ratings and discussed exactly how that will translate into November’s midterm election results.

First, the good news for the GOP: "Number one, his approval rating among registered voters is higher than all voters," Enten said. "That's key because not all adults will turn out to vote in the election."

And if Trump could budge his approval rating up, things might get sunnier for the Red Hat crowd.

"If his approval rate can go get north of 45 percent then it is a very, very different ball game and we still have a month to go," "Enten said. "We are right in the margin of error where hey maybe if he gets higher he won't be that harmful for Republicans nationwide."

However, Trump is coming off what has often been described as "the best week of his presidency," and it remains to be seen if he could climb over 45 percent.

"Since the second World War we know that when a president's approval rating is below 45 percent it tends to spell major trouble," he said. "There have been a number of cases where that has been the case, as this graphic shows, when that happens, we see that the president's approval rating when it's below a threshold, below 45 or below 50 percent that spells major trouble."

Which is why Republicans so desperately want Trump to stop alienating people.

"Republican strategists tell me flat-out, a five point swing [in the] president approval rating is worth 20 seats to them," he said. "When he was at 36 percent they told me if they say here that's 20 seats they are going the lose."

Watch the segment below.