Rob Portman, a possible VP pick, knocks Obama for lack of 'presidential leadership'
Portman's exit signals uncertainty for Senate GOP - POLITICO
Rob Portman | Alliance to Save Energy
Jonathan Petuchowski: J.D Vance follows Trump's hate-mongering steps
Portman's role in disputed Ukraine narrative sets him apart from other senators
GOP Sen. Rob Portman of Ohio won't seek reelection | WSYX
Caitlin Conant, Sen. Rob Portman's communications director, is joining Rubio campaign - cleveland.com
Ohio Republican sen. won't support Jackson to Supreme Court
Portman for (vice) president - POLITICO
Sen. Rob Portman not interested in V.P. - WFMJ.com
Rob Portman - Wikipedia
Vice President Contender: Is Rob Portman the Answer to Republicans' Palin Problem? | TIME.com
Sen. Rob Portman announces he won't seek re-election - cleveland.com
At the Top of Romney's VP Short List: Rob Portman | The Fiscal Times
Sen. Rob Portman still won't call Joe Biden “President-elect” - cleveland.com
Vice Presidential Frontrunner Rob Portman: Romney 'Willing to Risk Being One-Term President'
Rob Portman to play Obama for Mitt Romney's debate preparation | US elections 2012 | The Guardian
Sen. Rob Portman - Republican Accountability Project
Rob Portman's haunted hotel and 3 more surprises about the VP frontrunner | The Week
Senators Have Serious Issues With House GOP Health Care Bill - Roll Call
Portman 'not interested' in Trump VP slot- POLITICO
