Definitely. The Republicans did it under Bush, and the Democrats have magnified this abuse ten-fold.
By publishing the health care plan and the Cap and Trade plan mere hours before forcing a vote instead of publishing it many days beforehand and letting the citizens read the bills is abuse of power. Pelosi literally said, "We need to pass the bill so you can learn what's in it."
We're being lied to every day for political gain under the guise of "spin." All politicians do it, but Democrats are masters.
"The healthcare plan will SAVE money."
"Cap and trade will save and create jobs."
"The stimulus bill created or saved tens of thousands of jobs."
These are just 3 examples of so very many lies. Lying to the people knowing that they will eventually just go along if the lie is told enough times is clearly abuse of power.