Yes, Republicans really do have a problem with young voters. And according to a newly released study, they at least temporarily lost almost half of their under-29 supporters during the 2016 election campaign, and half of those have not come back.

The Pew Research Center surveyed the same panel of more than 8,000 adult respondents five times, beginning in December 2015 and ending in March 2017, to track their party self-identification. Most partisans and leaners — 66 percent of self-identified Republicans and 65 percent of Democrats — kept their colors the same throughout, never wavering.