Donald Trump and Sen. Ted Cruz (R-Texas) will jointly host a rally at the Capitol in the coming weeks to protest the nuclear deal with Iran, Cruz’s campaign said on Thursday.

A date for the presidential candidates’ event has yet to be announced, but its planning underscores the strengthening ties between the two Republicans.

Trump, the clear front-runner in the GOP primary, has refrained from launching his harshest barbs at Cruz, and the Texas senator has likewise declined to join in the attacks against Trump that have become common among many of their Republican rivals. Instead, Cruz has said he is “grateful” for Trump’s focus on immigration despite the controversial nature of his comments.

Like many Republicans, both candidates have blasted the Obama administration over the nuclear deal with Iran, which would set limits on the country’s ability to build a nuclear weapon in exchange for lifting sanctions on its oil and financial sectors.

Iran will become “so rich and powerful” once the deal goes into effect, Trump said in July.

“Ultimately, they’re going to have nukes all over the place,” he added.

Read the article “Trump, Cruz to Hold Joint Anti-Iran Rally on Capitol Hill” on thehill.com.