U.S. Sen. Ben Sasse of Nebraska will surround himself with many of the state’s top Republicans on Monday for a likely announcement that he’ll seek a second term, despite angering some party activists with his repeated criticism of President Donald Trump ... The event follows news last week that Sasse could face a primary challenge from Matt Innis, a Lincoln-based GOP activist and former chairman of the Lancaster County Republican Party. Innis, a Trump supporter, announced his candidacy last week and blasted Sasse for making statements critical of the president.