A few weeks ago, Washington was buzzing with predictions that Republicans will impeach President Obama. More recently, Washington has been buzzing with predictions that Republicans will shut down the government.Both have come mostly from Democrats facing long odds in November's midterms, hoping the GOP might do something suicidal before voters go to the polls. The only problem is, well-connected Republicans insist it's not going to happen.House Speaker John Boehner appeared to settle the impeachment question last month when he called all the talk a "Democratic scam" and added, "We have no plans to impeach the president.