It’s only early July, but it’s time to prepare for a barrage of chatter about possible Republican and Democratic convention bounces. That’s because this cycle both party conventions will take place entirely in July. …
Over the next few weeks, you’ll see lots of articles about what kinds of polling “bounces” or “bumps” you should expect from each of the conventions, undoubtedly followed by lots of pontificating from Trump and Clinton campaign surrogates about what the “before and after” polls show. CONT.
Stuart Rothenberg, Washington Post