Iowa's Republican U.S. Senator just turned 80 years old earlier in the week. And he admits he's looking at another milestone in his life.

Senator Charles Grassley says he's "planning on running" for re-election when his term expires in 2016. But Grassley says other than that, he's not spending a lot of time talking about it. 

Grassley says he's "doing my job" in Congress and will worry about a re-election campaign when the time comes.

He made the comments during the taping of the Iowa Public Television program, "Iowa Press" Friday.