Just one state holds its primaries today: Maryland. And it doesn’t lack
for drama.

In the gubernatorial Democratic primary, there’s a “total lack of
clarity about who will be representing the party in November, after a
lengthy primary distinguished by the failure of any candidate to break
away from a nine-person field,” as our colleagues Brakkton Booker and
Zach Montellaro write.

The Republican primary is a proxy battle between moderate term-limited
Gov. Larry Hogan and former President Donald Trump, who is eager to
embarrass Hogan, his longtime critic.

But here's what you should really watch — Maryland offers the latest
example of a strategy that Dems have employed throughout the country:
meddling in GOP primaries to get the general-election opponent they’d
prefer, often boosting candidates further to the right who are aligned
with Trump.

Playbook’s video series “The Midterm View:"  Dems meddle in GOP
primaries

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Raghu Manavalan is the Host of POLITICO's Playbook.
Jenny Ament is the Executive Producer of POLITICO Audio.