There sure is a lot of angst in the liberal ranks regarding Trump pulling us out of the Iran agreement. Actually, you can blame Obama for Trump even being able to make that decision. Fact is that Obama signed this agreement himself solely because a bipartisan Congress would not agree to sign it as a treaty so it was no more than a Presidential agreement with Iran and one in which the leaders of Iran didn't even have to sign off on it. Furthermore one of the side agreement John Kerry (and Obama) agreed to was that under the agreement the United States agreed to protect Iran from an attack even if that attack came from Israel.
So because Obama did not go through Congress, which was the constitutional way, to enact a treaty/agreement with Iran, Trump only had decided to pull the US out of it and because it was without Congress that it was enacted then Congress did not have anything to do with Trump's removal.
One last comment, with respect to Gas Prices. I do believe that higher gas prices affect the overall economy and can slow it down as well as taking more money out of the pockets of families. Gas prices are around $2.70 right now with oil at around $70.00 a barrel but under Obama, prices were in the upper three dollar area. Additionally, oil prices under Obama were raising because we (America) was far more dependent upon foreign nations for our oil and because the refining capacity of our nation is still quite diminished. What actually brought prices down was the availability of domestic oil from fracking, something that Obama had absolutely nothing to do with. Fracking became economical when the cost for oil reached as high as it did making it profitable for frackers. When Trump opened up domestic fields, that Obama had long closed, for exploration and oil then the US no longer was reliant upon foreign nations, many that are hostile to us,
Regardless of prices of oil though FAR greater expenses and money is coming out of families budgets due to the Democrat's messing with healthcare and healthcare insurance. Deductibles that families have to pay before any insurance takes effect have increased exponentially in some cases. In my specific families case, our deductible increased from $400.00 a year for our family deductible to $4000.00 SOLELY because of Democratic Healthcare bill, not Republicans. So when it comes to money out of my pocket rising oil cost cannot approach the financial pain, brought on because of Democrat's (non)Affordable Healthcare bill.
If you want me to feel all warm and fuzzy about voting for Democrats or a Democrat then the Democrats need to FIX what they broke but sadly I don't think that's a possibility.