At one point, Mr Rubio and Kentucky Senator Rand Paul tangled over the issue of military spending, with Mr Paul saying his rival's plan to increase military spending went against conservative principles.(上文)
"We can't even have an economy if we're not safe," responded Mr Rubio.这句话如何理解?
The primary elections, in which the Republican party and the Democratic party pick their presidential nominees, begin in February in the state of Iowa(下文)