If you've ever wondered how political parties try to shape who represents you, Chuck Schumer's recent moves offer a masterclass. You might be surprised by the extent to which party leaders get involved in races long before the general election.
Chuck Schumer is trending because he's been unusually active in Democratic primary races for the Senate, drawing both praise and criticism.
As the Senate Majority Leader, Schumer traditionally stays neutral in primaries to avoid alienating potential future colleagues.