Why I Placed Ban On Muslim Immigrants Without Notice - Trump

US President Donald Trump has given reasons why he expedited action on the immigration ban imposed on some countries.

He stated this in a serious of tweets Monday afternoon.

He said: “If the ban were announced with a one week notice, the "bad" would rush into our country during that week. A lot of .

“There is nothing nice about searching for terrorists before they can enter our country. This was a big part of my campaign. Study the world!”