Sen. Kirsten Gillibrand finally snagged a home state endorsement. Why on earth did it take so long?

For weeks, the 2020 candidates have been racking up endorsements from their home state delegations. Two months into her presidential campaign, Sen. Kirsten Gillibrand (D-NY) finally received one too — from fellow New York lawmaker Carolyn Maloney.

“I am proud to endorse my friend @SenGillibrand to be our next President and the nation’s first woman President,” Rep. Maloney (D-NY) tweeted Sunday evening. “I saw tenacity when we fought together to pass the...