Now that Graham Platner has won the Democratic primary in the Maine Senate race, what does the general election match-up with incumbent Sen. Susan Collins (R) look like? Plus, the broader Senate map continues to shift in Democrats’ direction as their hopes of taking back the upper chamber grow. Join The Hill’s senior vice president…

Now that Graham Platner has won the Democratic primary in the Maine Senate race, what does the general election match-up with incumbent Sen. Susan Collins (R) look like? Plus, the broader Senate map continues to shift in Democrats’ direction as their hopes of taking back the upper chamber grow. Join The Hill’s senior vice president…