Trump ran as an outsider to the Republican Party, but he didn't seek to dismantle it. Even now, as the 2018 primaries are ending, an army of Trumpkins hasn't invaded the Republican primaries. Instead, Republican officeholders have become Trumpkins themselves. Nobody running in a GOP primary wanted to be attacked as being insufficiently supportive of Trump. The president's popularity within the GOP is at 87 percent, the second-highest intraparty approval rating of any president at this point in his first term since World War II — behind only President George W. Bush following the 9/11 attacks. That story has gone mostly unreported, and it makes Trump stronger than a lot of people in the former GOP establishment and mainstream media want to believe.