Anti-Trump delegates are preparing a rules change proposal that would chart a path for delegates to choose their own vice presidential nominee at the Republican National Convention, instead of voting for Donald Trump’s choice. A draft proposal obtained by BuzzFeed News outlines several changes to Rule 40 that would make it easier for delegates to reject whomever Trump picks as his running mate and present their own alternative. BuzzFeed News has learned that it will be presented at the Rules Committee meeting next week in Cleveland ahead of the convention. Already, delegates are technically not bound to vote for the...