I'm assuming that millions of Americans are breathing a sigh of relief that the Obama era is coming to an end. He apparently only has a few more hours to seize all the guns; set up the FEMA camps; institute Shariah law; destroy Israel; and replace the Department of Defense with the New Black Panthers. It's possible in the years to come he'll reveal his true identity as a foreign-born Muslim terrorist. But by then the point would be sorta moot. On the other hand, I - and no doubt many of my fellow Americans - have some concerns about the incoming Trump administration that seem grounded in somewhat more solid reality. As in Trump, his nominees to high office, or his Republican allies in the Congress - have specifically promised to do: Destroy the ACA, and throw America's health care system into crisis. Congressional Republicans seem hell-bent on repealing Obamacare. Trump has promised to replace it with "something great", and make sure "everyone has insurance." If he follows through on that promise, I'll cheer him on. But whenever I think of Trump's promises, I'm reminded of the fact that there still isn't a Trump Tower in Moscow. Destroy the budget of the United States Federal Government. Trump's tax plans would result in an increase of the deficit by about $7 trillion in the coming decade. It would achieve this through a series of tax cuts that will end up benefiting the average middle-class taxpayer by about $20 per week. While giving the top 0.01% an extra couple of million per year. It's possible this tax cutting will boost growth a tad. But even for an economy as big as the US, an extra - and un-needed - $7 trillion of debt is going to cause problems. Problems that cripple the US financially for decades to come. Set Back Reproductive and Civil Rights - permanently - via the Supreme Court. Trump will nominate an avowedly Conservative Justice to replace the long-dead Antonin Scalia. Returning the balance on the Court to the composition it has had for most of the past decade. But if one or two of the older, more liberal, Justices retire or die during Trump's term - it seems not impossible that we could see Roe v. Wade overturned; most of our Civil Rights legislation abolished. Provoke a military and political crisis in Eastern Europe. If Trump - contrary to the advice of his Sec. Def. nominee - prematurely rescinds the sanctions on Russia over its annexation of Crimea and incursions into Ukraine, then there is a strong possibility that Vladimir Putin will feel emboldened to grab some additional territory in the region. Eastern Ukraine; one of the Baltic States, etc. The US would have a very unpleasant choice on its hands: Either challenge the Russians militarily or face a massive political humiliation. Provoke a military crisis with China. Should Trump break with long-standing policy and recognize Taiwan's independence, it is possible that China will respond by taking military action to seize Taiwan. Again: Giving the US options that are decidedly unpleasant. Provoke a ruinous trade war with the rest of the world. Placing tariffs on goods imported from Mexico is going to cause huge problems unanticipated by Trump. Inexpensive, high-quality Mexican auto parts are vital for the economic success of many companies that build and assemble cars in the US. Trade with the NAFTA block is over a trillion per year, and disrupting such a large segment of the ($17 trillion) US economy is going to cause chaos and a great deal of job loss and economic hardship. Provoke a crisis with Iran. Trump has vowed to tear up the Iran nuclear accord. While Trump is unlikely to get the cooperation of the other P5+1 nations, he could reimpose some US sanctions. Which will almost certainly cause a reaction from Iran. Of which restarting its nuclear weapons program seems at least a strong possibility. Leaving the US few palatable options. Bombing Iran anyone? Join with Russia in a bloody, and horrific, campaign in Syria. Our current strategy, letting Iraqis and Kurds do the actual infantry fighting - is a slow process. Quickly rooting out ISIL militarily would eventually come down to US (and presumably Russian) ground troops. Leaked video of ISIL savages torturing and murdering captured US troops is a horror I tremble to imagine. Roll back financial regulations that have helped prevent future economic collapses. Trump and the Republicans have vowed to repeal Dodd-Frank which, among other provisions, raised the capital requirements for large financial institutions. Without the requirement to back up risky loans with their own capital, banks may feel tempted to re-engage in many of the risky lending practices that led to the 2008 financial collapse. The LAST concern is one that Trump has not specifically promised to do. But it is something I think many of us are deeply concerned about: A long, drawn-out, and deeply humiliating scandal. The Trump administration seems almost hell-bent on this happening. Trump's business interests present a multitude of glaring conflicts of interest. His naming of numerous family members to advisory positions. His puzzling connections to Russia, and other countries. The frank incompetence of many of his nominees to high office. His ill-advised midnight Tweeting. I sincerely hope that none of these scenarios come to pass. I do truly hope that Trump delivers on his promise to get us "great health insurance" that everyone can afford. But if he doesn't, and instead leads this country into a social, economic, military, humanitarian, or political cataclysm - don't say you weren't warned.