From Infidel753:
The recent victory in PA-18 and today’s primary in IL-03 illustrate well how ideological divisions within the Democratic party should be handled. They represent opposite ends of the spectrum of possible electoral situations.
In IL-03, incumbent Congressman Dan Lipinski is facing a primary challenge. Despite being a Democrat, Lipinski is not a liberal; he’s outspokenly opposed to abortion and gay rights, and has voted against the ACA and Planned Parenthood funding. (The only positive thing about him seems to be his support for science.) His primary opponent, Marie Newman, is a solid liberal. Whichever of them wins the primary is guaranteed to win the general election; IL-03 is a solidly Democratic district and the Republican candidate is an anti-Semitic crackpot who got the nomination by default because no other Republican bothered trying for it. Every real liberal or progressive should hope that Newman wins today.
In PA-18, Conor Lamb won a district which has been Republican-held for 14 years and which went for Trump in 2016 by a 20-point margin. The margin of victory was only about 600 votes. Lamb is too conservative for some Democrats’ taste, mostly due to being “personally opposed” to abortion. He is, however, pro-choice since he doesn’t support laws restricting access to abortion — laws most Republicans do support. In practical terms, what matters about a politician is what legislation he would vote for.