(Radio Iowa) – Iowa Senator Chuck Grassley says President Biden has every right to be irritated about his situation. Grassley — the longest serving Republican in the U-S Senate — watched Biden’s speech at the Democratic National Convention on Monday night.

Grassley and Biden served in the Senate together for 28 years. When asked earlier this summer whether Biden was fit to serve as president, Grassley said he was not going to dump on Biden about his age, but was focused on critiquing Biden’s policies.

Grassley, who is nine years older than Biden, made his comments after visiting a business in Plymouth County. Grassley says he’s completed his annual tour of Iowa’s 99 counties with a final stop in Woodbury County.

In a post on social media, Grassley said he celebrated his 44th tour of Iowa’s 99 counties by having both a strawberry malt and a Reece’s Blizzard at a Dairy Queen in Sioux City. Grassley was elected to the U-S Senate in 1980 after serving six years in the U-S House.