Another Democratic Senate seat threatens to turn Republican.

Senator Frank Lautenberg is 86 years old and diagnosed with stomach cancer:

"We expect a full and complete recovery for Senator Lautenberg. The senator will be treated with chemotherapy administered approximately every three weeks. We anticipate that he will receive between six and eight treatments, and in between treatments, the senator is expected to be back at work in the Senate."...

If Lautenberg's health forces him to resign, it could hurt the Democratic Party. Under New Jersey law, Gov. Chris Christie, a Republican, would be able to appoint a replacement if a senator left office.