“The rift in the Republican Party grew deeper on Sunday and threatened to upset the July convention as Donald Trump refused to rule out blocking Paul Ryan, the speaker of the House, from serving as the convention’s chairman,” the New York Times reports.
“Mr. Trump’s warning was his latest affront to Republicans who have urged him to adopt a more cooperative and unifying tone. And it amounted to an extraordinary escalation in tensions between the party’s presumptive nominee and its highest-ranking officeholder.”


?Political Trivia
Eight moments in political history. Put them on a timeline.
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Five senators. Three bills. Can you guess how they all voted?
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Nine Justices. One case. How did they rule?
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Do you have your finger on the pulse of America?
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Four questions a day.
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A new game every day.