The prosecutor in the impeachment trial of Illinois Gov. Rod Blagojevich says he's proven "a pattern of abuse of power." In his closing argument Thursday, prosecutor David Ellis says the evidence shows Blagojevich knew his conduct was improper.

Ellis cites snippets of secretly recorded conversations that federal prosecutors released when they arrested Blagojevich last month. He says they show Blagojevich based all his decisions on what was best for him personally, politically and legally. The Democratic governor is scheduled to reply later before state senators vote on whether to remove him from office. Blagojevich has denied any wrongdoing.

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