Story highlights Gingrich came out in favor of Hillary Clinton's push to find a cure for Alzheimer's by 2025

"I often disagree with @HillaryClinton but on #Alzheimers she is moving in the right direction," Gingrich tweeted

Washington (CNN) Newt Gingrich and Hillary Clinton may have a long relationship as political rivals, but the former Republican House speaker is backing one part of the Democratic front-runner's presidential platform.

Gingrich, who was former President Bill Clinton's chief antagonist while in office, came out in favor of Hillary Clinton's push to find a cure for Alzheimer's by 2025.

"I often disagree with @HillaryClinton but on #Alzheimers she is moving in the right direction," Gingrich tweeted Tuesday, with a link to a CNN story describing Clinton's plan.

I often disagree with @HillaryClinton but on #Alzheimers she is moving in the right direction. https://t.co/OFCw89xlZz — Newt Gingrich (@newtgingrich) December 22, 2015

The Democratic front-runner on Tuesday unveiled her initiative, which would invest $2 billion annually in fighting the disease and researching a cure. The proposal would be paid for by tax reform proposals and other savings.

Read More