Mercy johnson husband dumps pdp joins apc

I think there may be some confusion here!

Mercy Johnson is a popular Nigerian actress, not a politician, so it's unlikely that she has a husband who is a politician or has joined a political party.

However, if you're referring to a different person or a fictional scenario, I'd be happy to play along!

In that case, if Mercy Johnson's husband (who is a politician) were to dump the People's Democratic Party (PDP) and join the All Progressives Congress (APC), it would likely be a significant news story in Nigeria's political landscape.

But, to clarify, this is purely fictional, and I'm just having fun with the scenario.