Two people told The Associated Press that Trump’s campaign wants Rokita’s campaign to take down the signs.
The signs show in large letters “Endorsed by Trump/Pence” and then in smaller type “2016 Indiana Team Leaders.”
The second line refers to the endorsement of two volunteers who led Trump’s 2016 state campaign.
Rokita’s spokesman Nathan Brand would not comment to the AP on whether the campaign would change the yard signs.
Watch: A Loyalty Contest for Trump in Indiana Senate Race
“We do not comment on yard sign strategy,” Brand said in a statement.
Tony Samuel, one of the volunteers who endorsed Rokita, said the Trump campaign texted him criticizing the signs.
The sticking point is concern that Trump’s campaign looks like it made an endorsement in the primary, one campaign official told the AP.
Samuel and Rex Early said when they endorsed Rokita, they did not do it on behalf of the Trump campaign but as individuals.
“We are not speaking for the president or the White House,” Samuel said.
Each of the candidates have tried to tie themselves to Trump in the home state of Vice President Mike Pence.