Sen. Jerry Moran raised more than $500,000 during the first three months of the year as he prepares to defend his seat in 2016.

Kansas is solid conservative territory, positioning the Republican to win a second Senate term. But Moran must guard against a challenge from the right of the kind that almost derailed Sen. Pat Roberts in 2014. Moran, who served as chairman of the Senate Republican campaign committee last cycle, played an integral role in helping Roberts fend off a primary from Tea Party candidate Milton Wolf.

Moran, a House member when he first ran for Senate in 2010, won a competitive primary in a year that saw the rise of the Tea Party across the country. The senator's team is confident that the battle-tested Kansan will win re-nomination next year. He should be well resourced. According to figures shared with the Washington Examiner, Moran's first-quarter fundraising report will show more than $1.7 million in cash on hand.

"Sen. Moran has always put Kansans first, and his reelection campaign will continue to reflect that commitment," Moran campaign spokeswoman Elizabeth Patton said in a statement. "But beyond impressive fundraising totals, Sen. Moran is putting together an experienced campaign team to lay the groundwork for an extensive grassroots operation."

"My conversations with Kansans from each of our state's 105 counties are remarkably consistent," Moran added. "Kansans want Washington to abide by the Constitution. They want Washington to end the reckless spending, and instead prioritize the things that make our country great – individual liberty, a strong national defense, quality care for our veterans, and the freedom to pursue the American Dream."