Still, they persist (because it works.)

The Democratic Congressional Campaign Committee sends the worst emails of all time, a Center for Public Integrity investigation found. (I’m paraphrasing.) Chock full of bait-and-switch tactics and constant freak-outs, the DCCC raked in $86.3 million from individual contributors from the beginning of 2017 through January 2018. That’s three times the amount raised from individual donors by the DCCC’s GOP counterparts. [Center for Public Integrity]

From CPI, a progressive site, via 538.