This week, readers sent us comments about our fact-checking of President Obama, ads from the League of Women Voters and the idea of taxing miles driven. In the FactCheck Mailbag, we feature some of the e-mail we receive. Readers can send comments to editor@factcheck.org. Letters may be edited for length.

This week, readers sent us comments about a Medicare ad in a House race, the League of Women Voters' ads and Newt Gingrich. In the FactCheck Mailbag, we feature some of the e-mail we receive. Readers can send comments to editor@factcheck.org. Letters may be edited for length.

This week, readers sent us comments about the League of Women Voters’ ads and Newt Gingrich. In the FactCheck Mailbag, we feature some of the e-mail we receive. Readers can send comments to editor@factcheck.org. Letters may be edited for length.

This week, readers sent us congratulations on our 2011 Webby Award and a comment on politicians’ distortion of facts. In the FactCheck Mailbag, we feature some of the e-mail we receive. Readers can send comments to editor@factcheck.org. Letters may be edited for length.

This week, readers sent us comments about the Rev. Franklin Graham and President Barack Obama’s budget speech. In the FactCheck Mailbag, we feature some of the e-mail we receive. Readers can send comments to editor@factcheck.org. Letters may be edited for length.

This week, readers sent us comments about President Obama’s budget speech and more on Donald Trump’s claims about Obama’s birthplace. In the FactCheck Mailbag, we feature some of the e-mail we receive. Readers can send comments to editor@factcheck.org. Letters may be edited for length.

This week, readers sent us comments about Donald Trump, Social Security, balanced coverage, congressional reform and Sarah Palin. In the FactCheck Mailbag, we feature some of the e-mail we receive. Readers can send comments to editor@factcheck.org. Letters may be edited for length.

This week, readers sent us comments about Donald Trump, the Massachusetts health care law and the FactCheck quiz. In the FactCheck Mailbag, we feature some of the e-mail we receive. Readers can send comments to editor@factcheck.org. Letters may be edited for length.

This week, readers sent us comments about the Wisconsin budget battle and our scrutiny of Republicans and Democrats. In the FactCheck Mailbag, we feature some of the e-mail we receive. Readers can send comments to editor@factcheck.org. Letters may be edited for length.

This week, readers sent us comments about oil production, oil imports and reliable sources of information. In the FactCheck Mailbag, we feature some of the e-mail we receive. Readers can send comments to editor@factcheck.org. Letters may be edited for length.