Donald Trump Inauguration speech as a speech

I believe Trump delivered a speech appealing mainly to it´s voters and to those who supported him, the aim of his speech I believe is to reassure the american people of his goals as a president and the main policy that he will be applying throughout his presidency which he stated is, "America first". I believe there was some indirect talk against the Obama administration. Specially for the part where he said that he was giving the power back to the people of america in an anti-disestablishment speech.