Redressing the legacy of Obama is a huge task 

“Draining the swamp” of corruption and anti-Americanism allowed and perpetrated by is predecessor is the very reason he is president of 320 million people. Yes, President Trump is mad, he is mad about the irresponsible mess left by the previous regime. In the last eight years US debt doubled to almost 20 trillion dollars. The US economy has been floating on borrowed money ... but one issue that must be redressed.
It is fellow members of both the UN and Nato who need to “wake up”, pay their fair share and not simply rely on benefactor Uncle Sam to protect them. Trump never called for Nato to be abandoned but called for its reform to better meet threats of today, including the rise of fundamental Islamic terrorism.
President Obama weakened the USA economically, militarily and socially. The results are there to see and middle-class Americans are well aware of his legacy, they suffer it.
Mexico has a responsibility to control its borders, to crack down on the criminality that thrives there and spills over the border.  Their criminals have no right in the US, where they seek refuge in sanctuary cities.
Obama, only days before his departure agreed with the PM of Australia, Malcom Turnbull, to receive 1,200 migrants that Australia did not want. If they were genuine refugees, why did Australia wish to offload them and why should the US take them? Interestingly, why are other predominantly Islamic neighbouring countries not providing refuge for genuine Muslim refugees? A private mosque has just been discovered within the confines of the White House. Barack Obama was raised as a Muslim and instilled with the Communist ideology by his stepfather.
When speaking of Muslims, it must not be overlooked that they stand for the totalitarian political ideology of Islam. As Senator Rick Santorum pointed out, Islam cannot therefore claim protection under the 1st Amendment as a religion. It is diametrically opposed to the US Constitution because it is, in the words of The Prophet, a total (meaning totalitarian) guide to all Muslim with its own Sharia laws. Obama encouraged the infiltration of fundamental Islam by the Council for American Islam Relations, CAIR, an affiliate of the  Muslim Brotherhood. This has been banned as a terrorist organisation and yet allowed to operate freely in the US. It is even represented on Capitol Hill by a PA of Hillary Clinton’s, Huma Abedin. This is well documented, as is the fact the president sent a plane-load of cash in several currencies to Iran. At the time of the Benghazi affair, a large US arms cache was shipped from Libya to arm rebels intent on overthrowing Assad in Syria, in line with Obama policy; this with the knowledge and approval of the President and Secretary of State. These rebels are ISIS.
Redressing the legacy of the previous regime is a monumental task. The more one researches, the more horrifying and physically nauseating it becomes. 
JC Wilcox