"They discussed bipartisanship in terms of the budget and getting something done," a Kirk spokesman said in an email to The Hill. "They discussed North Korean/Iranian nuclear programs. They discussed guns."

Kirk, who now holds the Senate seat previously held by Obama, has recently been involved in negotiations with Sen. Tom CoburnThomas (Tom) Allen CoburnThe real disease: Price transparency key to saving Medicare and lowering the debt Mr. President, let markets help save Medicare Pension insolvency crisis only grows as Congress sits on its hands MORE (R-Okla.) and Democratic Sens. Charles SchumerCharles (Chuck) Ellis SchumerDemocrats slam Trump for considering Putin’s ’absurd’ request to question Americans Judge Kavanaugh confounds the left This week: GOP mulls vote on ‘abolish ICE’ legislation MORE (N.Y.) and Joe ManchinJoseph (Joe) ManchinElection Countdown: Senate, House Dems build cash advantage | 2020 Dems slam Trump over Putin presser | Trump has M in war chest | Republican blasts parents for donating to rival | Ocasio-Cortez, Sanders to campaign in Kansas Senate Dems build huge cash edge in battlegrounds Morrisey accuses Manchin of 'lying' to Trump, attacks ‘liberal’ record MORE (W.Va.) over a compromise on gun background check legislation.

The call comes as Obama reaches out to a number of Republican lawmakers in the House and Senate. Obama hosted a closed-door dinner with a dozen Republican senators a week earlier. The discussion at the dinner focused on the budget and deficit reduction, according to senators who were at the dinner.

Kirk was not one of the senators at the dinner.

Obama is also set to meet separately with the Democratic and Republican caucuses in the House and Senate throughout the week.