Sen. [crscore]Marco Rubio[/crscore] and Sen. [crscore]Rand Paul[/crscore] entered into a heated argument over military spending during Tuesday’s GOP debate, with the former asking “how is it conservative to add $1 trillion in military expenditures?”

RUBIO: Yes, I do want to rebuild the American military —

PAUL: How is that conservative?

RUBIO: I know Rand is a committed isolationist, I am not. I believe the world is a stronger and a better place when America is the strongest military power in the world.

PAUL: Marco! Marco! How is it conservative to add a $1 trillion expenditure to the federal government —

RUBIO: Because —

PAUL: How is it conservative to add $1 trillion in military expenditures? You cannot be a conservative if you keep promoting new programs that you’re not going to pay for.

RUBIO: We can’t even have an economy if we’re not safe. There are radical Islamists in the Middle East beheading people and cruficying Christians … Yes. I believe the world is a safer — No, no. I know that the world is a safer and better place when America is the strongest military power in the world.