The first 100 days of Donald Trump's presidency began on January 20, 2017, the day Donald Trump was inaugurated as the 45th president of the United States. The first 100 days of a presidential term took on symbolic significance during Franklin D. Roosevelt's first term in office, and the period is considered a benchmark to measure the early success of a president. The 100th day of his presidency ended at noon on April 30, 2017.
Institutionally, President Trump had the advantage of a Republican Party majority in the U.S. House of Representatives and the Senate, but was unable to fulfill his major pledges in his first 100 days, with some approval rating polls reporting around 40%.

He reversed his position on a number of issues including labeling China as a currency manipulator, NATO, launching the 2017 Shayrat missile strike, renomination of Janet Yellen as Chair of the Federal Reserve, and the nomination of Export-Import Bank directors. Trump's approval among his base was high, with 96% of those who voted for him saying in an April 2017 poll that they would vote for him again.

Near the end of the 100 days, the Trump administration introduced a broad outline of a sweeping tax reform focusing on deep tax cuts. Although Trump had to concede to delay funding for the U.S.–Mexico border wall he had promised, narrowly avoiding a government shutdown a few days before the end of the first 100 days.

Trump signed 24 executive orders in his first 100 days. He signed 22 presidential memoranda, 20 presidential proclamations, and 28 bills. About a dozen of those bills roll-back regulations finalized during the last months of his immediate predecessor Barack Obama's presidency using the Congressional Review Act. Most of the other bills are "small-scale measures that appoint personnel, name federal facilities or modify existing programs." None of Trump's bills are considered to be "major bills"—based on a "longstanding political-science standard for 'major bills'". Presidential historian Michael Beschloss said that "based on a legislative standard"—which is what the first 100 days has been judged on since the tenure of President Franklin D. Roosevelt, who enacted 76 laws in 100 days including nine that were "major".
Pledges
Trump pledged to do the following in his first 100 days:
Appoint judges "who will uphold the Constitution" and "defend the Second Amendment" Construct a wall on the southern U.S. border and limit illegal immigration "to give unemployed Americans an opportunity to fill good-paying jobs" Re-assess trade agreements with other nations and "crack down" on companies that send jobs overseas
Repeal and replace the Patient Protection and Affordable Care Act (commonly called the Affordable Care Act or Obamacare) Remove federal restrictions on energy production Push for an amendment to the United States Constitution imposing term limits on Congress Eliminate gun-free zones Formulate a rule on regulations "that for every one new regulation, two old regulations must be eliminated" Instruct the chairman of the Joint Chiefs of Staff to "develop a comprehensive plan to protect America's vital infrastructure from cyberattacks, and all other form of attacks." Label China a "currency manipulator" Enforce rules and regulations for China's unfair subsidy behavior. Instruct the U.S. trade representative to bring trade cases against China, both in U.S. and at the WTO. Use every lawful presidential power to remedy trade disputes, including the application of 45% tariffs consistent with Section 201 and 301 of the Trade Act of 1974, and Section 232 of the Trade Expansion Act of 1962 to stop China's illegal activities, including its theft of American trade secrets.
Inauguration
The first 100 days of the Presidency of Donald Trump began during the inauguration of Donald Trump with the conversion of Whitehouse.gov from the Obama Administration version to the Trump Administration version at 12:00 pm on January 20, 2017. This was the third presidential online portal transition and the first to transition social media accounts such as Twitter. As Trump took the oath of office, the official @POTUS Twitter account switched to President Trump with Barack Obama's previous tweets archived under @POTUS44.





