The attacks against Barack ObamaBarack ObamaPoll: Clinton outpacing Obama with millennials 5 things the US must do to avoid losing influence in Asia When did Russia become the enemy again? MORE continue to reverberate around the blogosphere Tuesday morning.

The Weekly Standard's Michael Goldfarb writes that it's been a bad week for the Democratic frontrunner, who has stumbled by making the "bitter" comment and is now seeing his poll numbers fall in Pennsylvania. Goldfarb suggests that Obama is suffering from overexposure, as he's running more television ads than his opponents. Clinton supporter Jeralyn at Talk Left finds that Obama was the one who attacked Clinton at the Philadelphia Jefferson-Jackson Dinner. Clinton, meanwhile, talked more about her own policies, an approach that Jeralyn found more effective. And Victor Davis Hanson at The Corner likens the presidential race to the one in 1952, when a war hero beat the "thinking-man's candidate."

Pushing back against Obama's critics, Arianna Huffington argues that John McCainJohn McCainTop Lobbyists 2016: Hired Guns Trump small-donor army a double-edged sword for GOP GOP gets chance to run on ObamaCare MORE can now go on vacation since Clinton is doing his bidding. Daily Kos's DHinMI takes issue with the suggestion by Clinton, the multi-millionaire wife of an ex-president, that Obama is "elitist" and is like former Democratic nominees Al GoreAl GoreGore slams 'dangerous' Dakota pipeline project Total debate audience sets all-time record Climate’s on the ballot like never before MORE and Sen. John KerryJohn KerryState Dept. months late on explaining Clinton aide's missing emails The evidence backs Trump: We have a duty to doubt election results Effective sanctions relief on Iran for sanctions’ sake MORE (D-Mass.).

But it's not just McCain and Clinton attacking Obama. MissLaura, another Kos blogger, finds Netroots nemesis Sen. Joe Lieberman (I-Conn.) telling a reporter that he sometimes finds Obama "far to the left" of "mainstream America." And Jonathan Singer at MyDD notes Rep. Geoff Davis's (R-Ky.) botched remark in which he referred to Obama as a "boy."

Shining a light on both parties' rhetoric in the election, Time's Michael Scherer takes issue with Republicans and Democrats for resorting to "truthiness" in their attacks instead of sticking to the truth, something that many expected campaigns would do in the age of Internet fact-checking.

A couple bloggers turn away from the presidential race to look at free trade and the return of Silvio Berlusconi. Pejman Yousefzadeh keeps after House Speaker Nancy Pelosi