Mr. Ryan wants to provide more federal funding for local and organic farms and promote carbon capture techniques.

Representative Tim Ryan of Ohio has made agriculture and food policy a centerpiece of his presidential campaign.

The context

• He wants to provide more federal funding for local and organic farms, and less funding for big agriculture businesses that produce ingredients for processed foods.

• He supports “regenerative agriculture techniques” like cover crops and no-till farming, which can enrich soil and increase biodiversity. He also wants to pay farmers to use techniques that would capture carbon in soil to help combat climate change.

• He is a co-sponsor of a House bill that would create tax credits and grants for grocers and other businesses that serve so-called food deserts, areas where healthy foods are inaccessible or unaffordable.

How he uses it

• Mr. Ryan argues that agriculture and food policy connect an array of seemingly distinct issues, including health care costs and climate change.