not sure what politics has to do with the cost of a loaf of bread...
hope that works out for you.
I'll be happy to explain.
When Biden took office, he immediately declared war on petroleum, natural gas and coal, the things that run our nation (ENERGY). He began by halting a pipeline, a pipeline that would have efficiently and with less pollution than current trucking and rail transportation, move oil to refineries. Biden then let it be known to the oil, coal and gas companies that they were endangered industries, and he was going to do everything he could to shut them down. This caused those industries to cut investments. The market answered by the price of oil going up. Since everything runs on, or is dependent on the price of energy, all prices of everything increased. Diesel to farmers increased, diesel to truckers increased, and fertilizer prices for farmers skyrocketed. Higher costs of production and transportation caused increased prices to the supermarket. This was the increase on the supply side.
Now on the demand side. Biden threw the border open to the world. He stopped the building of the Southern Border Wall, and called for The World, to rush the border. Beginning then (Trump had the border nearly under control) we have seen a massive invasion of people from all over the world, enter our nation.
They did not bring their food with them. Where will they get their food? The same place that you and I get our food. Millions of new "eaters" have invaded our nation, at the expense of our tax dollars, and are competing with the citizens for resources. This is the increase on the demand side.
Farmers did not anticipate this increased demand for food, and did not take the increased demand into account in their planting/ranching operation planning. How many extra Acres of crops should they plant for this demand? How many more head of livestock should they buy to graze? How are they going to afford the extra fertilizer/diesel/pesticides/herbicides/machinery/labor/seed/livestock/feed etc, to meet the need? Farmers and stockmen will do all that they can to meet the need, but with greater demand for housing, and cities expanding into farmland, there is less and less farmland available, and what is left becomes more and more expensive to buy, as demand goes up and supply goes down. On top of all the other problems, the farmers and ranchers have the red tape of bureaucracy to fight. Right now, here in Kansas, the Greenies in government are trying to get a prairie chicken declared endangered which will take a lot of land out of farm production. There are many Kansans fighting the Biden administration on this, but it is a tough battle. This is just one of many battles that farmers and ranchers have with the federal government agencies.
I could go on and on about how politics affect the price of food, but that is not my area of expertise, I'm just a lay person. I haven't even mentioned the flood of tax money that was sent out to consumers during the Pandemic, and the shut down of industries and retailers. Hopefully by now, you get the idea that
politics has everything to do with the price of a loaf of bread.