Manchin Threatens to Undermine Biden's Agenda and Democrats' Senate Majority

Senator Joe Manchin is threatening to repeal the climate change bill he helped pass.
Manchin has criticized Biden's environmental policies and vowed to block EPA nominees.
Manchin claims the climate bill costs too much and that Biden is delaying domestic energy production.
Manchin is considering running for president with a centrist third party that opposes Biden's agenda.
Manchin's actions jeopardize Democrats' ability to keep control of the Senate.