he banned visas from Iraq for 6 months. As well as added the 7 countries in questions to the list of places you could not have visited to apply for an expedited visa waiver. ie he said not just citizens but anyone who has recently gone there were not allowed a visa without going through the long visa process. In effect Trumps plan is narrower in scope but more biting. Obama's plan affected far more people but it didn't have any real teeth to it. also Obama did not announce the plan and merely enforced it. Trump announced it.