evidence: Fact Check: Here's whether CNN's David Chalian called Michelle Obama 'Big Mike' during debate coverage ATLANTA, GEORGIA: On Friday, June 28, a video circulated on TikTok where CNN's David Chalian is seen calling former First Lady Michelle Obama ‘Big Mike’ during Thursday’s presidential debate coverage. [...] Therefore, the claim that CNN's David Chalian called Michelle Obama ‘Big Mike’ is false. This incident underscores the importance of verifying the authenticity of information before drawing conclusions.