News; Donald Trump to Obama :Use ''radical Islamic terrorism'' not ''act of terror''

As millions of Americans processed the news that a terror attack had left 50 people dead at a gay nightclub in Orlando, Donald Trump reignited a political debate.

 "Is President Obama going to finally mention the words radical Islamic terrorism? If he doesn't he should immediately resign in disgrace!" Trump tweeted moments before President Barack Obama addressed the nation from the White House. He doubled down on those comments in a statement later Sunday that also called on Hillary Clinton to toughen her tone on terror.

Read Also; 50 killed at gay nightclub in Florida; Attack is deadliest mass shooting in U.S.

As expected, Obama did not utter the words "radical" or "Islam," instead referring to the attack as "an act of terror and an act of hate." Indeed, he has resisted using the term "radical Islam" throughout his presidency despite pressure from Republicans.

Though investigators had yet to officially conclude that the Orlando assailant was inspired by radical Islamic ideology, Sunday's tragedy returns questions over the importance of such terminology to the center of American politics.

Here's a look at why "radical Islam" and "radical Islamic terrorism" are such loaded terms and the arguments for and against using them.

Why do Donald Trump and other Republicans say using the term "radical Islamic terrorism" is so important?

Trump and other Republicans have hewed the same line: If you don't name your enemy, you can't to defeat it.

Trump explained his outrage at Obama's refusal to use the term at a campaign rally this spring: "Unless you're going to talk about it, you're not going to solve the damn problem folks. You're not going to solve it."

Trump and other Republicans have argued that the Obama administration fails to understand the enemy -- a key component of which, they argue, is the radical Islamic ideology that is fueling terrorist attacks in the Middle East and increasingly in the West.

Terrorists who perpetrated the most recent attacks in Europe and the U.S. -- like the shootings in San Bernardino, California, and Paris -- all subscribed to radical Islamic ideologies. The White House, Republicans say, shouldn't be afraid to call out the source of this violence.