President Barack Obama on Friday called on Sen. Rand Paul to drop his “quirky” objections to pending international tax treaties so they can move forward in Congress. Obama said the treaties will help U.S. authorities investigate and crack down on offshore tax evasion. Paul has argued that they would infringe on Americans’ constitutional right to privacy because their tax data and personal financial information would be shared with other countries. Treaties cannot go into force unless ratified by the Senate, and the objection of any one senator halts action on legislative business pending in that house of Congress, as Paul...