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Rep. Ryan Costello, R-Pa. Photo: Tom Williams / CQ Roll Call

Rep. Ryan Costello (R-Pa.) told MSNBC’S Kasie Hunt on Sunday evening that he will not seek reelection this year as he's facing an uphill battle in a newly-redrawn district in the suburbs of Philadelphia.

The backdrop: Costello had filed to run in the GOP primary for the state's 6th congressional district in May. But his district was transformed by the recent redrawing of the state's congressional districts after the state Supreme Court ruled that the prior GOP-crafted map was unconstitutional. The new map is expected to make elections more competitive and put several Republican-held seats in play for Democrats this year. For example, Costello's district went from +1 Clinton in 2016 to +9 on the new map.

Go deeper

8 Senate Democrats vote against adding $15 minimum wage to COVID relief

Photo: Stefani Reynolds/Bloomberg via Getty Images

Eight Democratic senators on Friday voted against Sen. Bernie Sanders' amendment to ignore a ruling by the Senate parliamentarian and add a $15 minimum wage provision to the $1.9 trillion COVID relief package.

The state of play: The vote was held open for hours on Friday afternoon — even after every senator had voted — due to a standoff in negotiations over the next amendments that the Senate will take up.

CDC: Easing mask mandates led to higher COVID cases and deaths

Customer at a supermarket chain in Austin, Texas. Montinique Monroe/Getty Images

Easing mask restrictions and on-site dining have increased COVID-19 cases and deaths, according to a study out Friday from the Centers for Disease Control and Prevention.

Why it matters: The report's findings converge with actions from governors this week easing mask mandates and announcing plans to reopen nonessential businesses like restaurants.