I have a Canadian passport , my partner is US citizen. We flew to Loreto via CBX border...can I enter the US via CBX into San Diego?

If you have a visa for the US, they will let you know the next step.

Only citizens and residents are allowed to come thru.

Only U.S. citizens or residents are permitted to enter the US due to COVID-19 Travel restrictions

Only Citizens and Residents are allowed to enter the US ( covid restrictions)