New Jersey Gov. Chris Christie’s office started keeping detailed lists of gifts and support provided to the state’s Democratic elected officials in order to more easily “remind them” how good the governor had been to them when it came time for re-election, it emerged at the Bridgegate trial Friday.

Starting as far back as 2011, Christie’s Intergovernmental Affairs office, or IGA, began compiling the list, which made note of sporting events, luncheons and state financial support to mayors and other elected officials, ex-Christie aide Matt Mowers testified in the federal trial in Newark.

“Given that it will probably be a long term focus, it probably makes sense to track all of our dem targets,” Mowers, who now works for Donald Trump’s presidential campaign, wrote in an email presented at the trial.

In the email, Mowers suggested “a column to keep track of what we’ve given them.”

This will be helpful, he said, “to make sure we remind them of how helpful this governor has been” when the re-election rolls around.

Mowers made the comments at the trial of former Christie aide Bridget Kelly and former Port Authority executive Bill Baroni, who were charged with closing down lanes on the George Washington Bridge in 2013. The crippling lane closures were done to punish the mayor of Fort Lee for refusing to endorse Christie in 2013, prosecutors said.