Kansas Republican Senator Pat Roberts is in a whole lot of trouble. Yes, you read that right – the notoriously conservative state of Kansas may throw out its senior Republican Senator who has served in the upper chamber since 1997.

Polling shows the Senate race to be very close between Roberts and independent challenger Greg Orman, with Orman being within the margin of error of Roberts.

Here are five reasons why Roberts is tanking:

1. Roberts Isn't In Kansas Anymore: Although he ostensibly represents the state of Kansas, he spends a lot less time there than he'd like his constituents to believe. He listed his home in the Washington, D.C. Metro-area of Northern Virginia as the address for campaign reimbursements, and his PAC is registered with a Tampa, Florida address.

2. Roberts Is Upsetting Even Other Conservative Christians With Crass Jokes: Roberts joked in 2012: “I’m a Methodist. We forgive our trespassers. Presbyterians forgive their debtors and the Catholics forgive themselves. But I’ll tell you what, we are all together. Oh, I forgot the Southern Baptists, they are probably underwater.”

3. Roberts Is More Than A Little Sexist: At a Kansas For Life event in 2012, here's how Roberts introduced Kansas For Life leader Mary Kay: “Mary Kay where are you? This is my girlfriend. And I have my wife here too. Right over here, Mary Kay thank you for giving Jerry and I the kind of information, the kind of enthusiasm and the kind of leadership that made it possible for Congress of the United States to say no to six.”

4. Roberts Is A Creepy Landlord: At a duplex that the Senator and his wife own, Roberts' wife Frankie has entered the building on occasion without permission of the renter, sparking a panicked 911 call.

5. One Of Roberts' Advisors Is Being Investigated By The FBI: David Kensinger, one of Roberts' campaign advisers for both this campaign and his race in 2008, is under investigation by the FBI for “influence peddling” during his time as chief of staff for Kansas's Republican Governor Sam Brownback. Although the probe is ongoing, even some Republicans are calling on the party to distance itself from Kensinger. “The FBI called me. The investigation is very real,” said former GOP state Sen. Dick Kelsey to a local newspaper. ““It's not a political thing with them at all. They do not want government that is corrupt. I am confident it’s not finished.”