"Where was all the outrage from Democrats and the opposition party (the media) when our jobs were fleeing our country?" Trump said in a tweet as he lashed out at both the media, whom he has now started describing as an opposition party and the Democratic party.
Trump said only 109 people out of 325,000 were detained and held for questioning.
"Big problems at airports were caused by Delta computer outage, protesters and the tears of (Democratic) Senator (Charles) Schumer," he said.
"MAKE AMERICA SAFE AGAIN!" Trump tweeted.
"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!" Trump said in another tweet to his 22.9 million followers.
"If the ban were announced with a one week notice, the 'bad' would rush into our country during that week. A lot of bad dudes out there!" said the US President.