US President Donald Trump has announced that the United States will no longer participate in the 2015 Paris climate agreement, the landmark United Nations treaty that many of us worked so hard to achieve. Trump is making a mistake that will have grave repercussions for his own country, and for the world.

The president’s overly rosy forecasts and tensions with Congress over alleged Russian meddling in last year’s US election mean a bumpy road ahead for his budget legislation. What Trump finally gets will probably a dramatically modified budget plan or an interim short-term deal that limits his administrative space.

Despite proposals to issue super-long government bonds and other ideas for controlling debt and the federal deficit, Congress and the president must bridge a lot of uncertainties to change the system dramatically.

Recently, President Trump released a U.S. tax cut plan to re-shore U.S. corporate revenues. Some expect it to cause great challenges to manufacturing and capital outflows from China. The realities are more complex.

If the past is any predictor of the future, then whatever capabilities the U.S. develops, other countries will as well. This has reinvigorated the current security dilemma that has long plagued space strategy based on technology defending technology, particularly in the case of the U.S. and China. It is in every country’s interest to pursue ways to enhance communication and clarify expectations of responsible actors in space with as much vigor as they do contingency warfighting plans and the development of new warfighting technologies. That, unfortunately, has not been the case, even though the last two years have seen more progress in diplomatic space efforts through the Committee on the Peaceful Uses of Outer Space than any other time prior.

In his first 100 days in office, Trump created more problems than achievements. The challenges and stakes ahead are abundant: Trump needs a breakthrough on his major reforms as soon as possible to gain some traction and rekindle confidence in his supporters and his party.

As the supposed engine of regional integration, and bedrock of East Asian security architecture, the ASEAN has sought, with limited success, to mediate maritime disputes and avoid conflict in the region. But beyond concerns over the gradual loss of so-called ‘ASEAN centrality,’ Southeast Asian countries are also worried about sudden and destructive escalation in Sino-American tensions in the area, especially if the Trump administration makes a step too far in order to project toughness.

"I didn’t want this job. I didn’t seek this job. My wife told me I’m supposed to do this.” These are the words of Rex Tillerson, the U.S. Secretary of State, the nation’s highest ranking diplomat. Tillerson’s candid comments come in light of his first trip to Asia where he met with leaders in Japan, South Korea and China.