Rep. Ed Markey (D-MA) tried to use the Federal Energy Regulatory Commission (FERC) to intimidate a utility executive who testified against the Waxman-Markey climate bill.
Although Rep. Markey quickly sent up a follow-up letter asking FERC not to focus on solely MidAmerican but on all investor-owned utilities, Republicans on the House Energy and Commerce Committee rebuked Markey on June 12:

Will the real Luca Brazzi please raise his hand?

How Environmentalists Plan to Control Your Life and What You Can Do to Stop Them