The anti-abortion activists celebrating Donald Trump’s vow to vote no on Florida’s upcoming abortion-rights amendment have their sights on a bigger target: extracting a promise from the former president to staff his administration with staunch abortion opponents if he wins in November. Trump’s rejection of Amendment 4 on Friday — 24 hours after criticizing the state’s six-week abortion ban — followed a public and private lobbying blitz from anti-abortion leaders. That included...