Lahn, a self-described farmer and businessman, defeated Rep. Randy Feenstra for the Republican gubernatorial nomination, defying expectations.
The Republican congresswoman will face Christina Bohannan in November in the swing-prone Iowa district.
Candidates are seeking a U.S. Senate seat currently held by Republican Sen. Joni Ernst, who decided not to seek reelection.
The California gubernatorial and Los Angeles mayoral primaries are among the most closely watched races today.
Governors are up for reelection in 36 states across the country this fall, including Iowa.
Health Secretary Robert F. Kennedy Jr. joined the governor for the signing ceremony.
As the first MAHA Action-endorsed state-level candidate, Lahn is a regenerative farmer who is one of five Republicans in a crowded Iowa gubernatorial primary.
The ruling allows the law to take effect while the case continues in lower courts.
Customers can get full refunds for returned items at most stores.
Iowa officials said they no longer need to rely on driver’s license records to determine whether a registered voter is a U.S. citizen.
The president thanked Iowans for their support in prior elections while asking them to turn out in large numbers this November.
The president is expected to tout his economic agenda and highlight achievements from his first year back in office.
The new restrictions are designed to promote healthier choices in federal food aid.
If Republicans can flip the seat, they can reverse a surprise defeat in an August state Senate special election.
Up to two-thirds of U.S. children aged 9 to 12 are estimated to have Roblox accounts.