The economy is doing well right now. The stock market is strong, employment is up, people are more optimistic about their prospects going forward. But this situation must endure and strengthen, in my view, in order for interest rates eventually to become higher. This article
points to the extent to which all this upbeat economic activity might be "on the come".
There is great antipathy for President Trump in America now, at least in certain quarters. In particular of concern is Republicans in Congress who hate him . . . . possibly enough to squirrel a tax cut so Trump is denied the positive outcome it likely will bring. As the article points out, lack of an anticipated tax cut could mean the end of the current positive economic expansion. In my view, at least, that also would result in interest rates remaining close to present levels.
So keep an eye on tax reform progress. If it all goes south, like health care reform did, you might want to adjust your CD buying accordingly.