The Donald Trump and Mike Pence campaign has tapped Wisconsin Gov. Scott Walker to play Democratic vice presidential nominee Tim Kaine in Pence’s debate preparations, Politico reported Saturday, citing an anonymous source.

Walker was chosen because he and Kaine are both governors and Walker has experience debating on a presidential stage following his brief presidential run during this year’s primaries.

Their titles are not the only thing that they have in common, another source told Politico. Walker was also reportedly tapped because he and Kaine are both “understated.”

“Walker is basically the same as Kaine … Both understated,” they said, according to Politico.

The role of Pence in Kaine’s debate prep will be played by Washington lawyer Robert Barnett, Politico also reported, citing an anonymous source. Barnett has been a pillar of Clinton’s debate prep for some time, with him most recently stepping in as played Sen. Bernie Sanders in mock debate during the Democratic primary

It’s unclear who will be playing Hillary Clinton and Donald Trump in the other’s debate prep–or if Trump will even have mock debates, since it has been reported that he will forgo “traditional debate prep.”