Biden aggressively prepares for debate while Trump cautions against excess preparation

 President Trump and former Vice President Joe Biden are preparing for Tuesday's debate  Biden aggressively prepares for debate while ...

 President Trump and former Vice President Joe Biden are preparing for Tuesday's debate 

Biden aggressively prepares for debate while Trump cautions against excess preparation

President Trump and former Vice President Joe Biden are preparing for Tuesday's debate in starkly different ways, with the latter engaging in mock stand-offs while the former says he's leveraging as practice the contentious environment he already faces as president.