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But some critics have urged Mr. Obama to go further.        </p><p itemprop="articleBody">
Senator Lindsey Graham, Republican of South Carolina, said that the president should push to move the G-20 meeting out of Russia altogether and that the United States should boycott the Winter Olympic Games set for 2014 in Sochi, Russia.        </p><p itemprop="articleBody">
“President Obama, should you go to St. Petersburg, Russia, for the G-20 summit if they give Snowden asylum and they don’t change thei