Re-entering the US from Mexico [duplicate]

I came to the US from the UK on September 1st and spent the full 90 days travelling round under the VWP and an ESTA. After my 90 days were up I have come to Mexico, where I will be spending 6 weeks in the country.

As of yet I do not have a flight booked back to the UK but have stared to look before I return home, I would love to stop in Salt Lake City for a week to see my brother.

Does anyone know if this is possible, having spent 6 weeks out of America would I be able to return for a week on a new VWP with a flight booked back to the UK?

Having read a few things online which suggests I can and others that say I can't.

uk us-visa-waiver-program esta mexico

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What documents do I need to re enter the US from Mexico?

The rules require most U.S. citizens entering the United States from Mexico at sea or land ports of entry to have a passport, passport card, or other travel document approved by the Department of Homeland Security.

Can a US citizen be denied reentry to the US?

The same is true for lawful permanent residents: you generally cannot be denied entry to the United States, but declining to answer questions may result in delay or further inspection. Refusal by non-citizen visa holders and visitors to answer questions may result in denial of entry.

Can tourist come to US now from Mexico?

The United States will temporarily limit inbound land border crossings from Canada and Mexico to \u201cessential travel\u201d. This action does not prevent U.S. citizens from returning home. These restrictions are temporary and went into effect on March 21, 2020. They will remain in effect through 11:59 pm on October 21, 2021.

Can you get back into the US from Mexico with a birth certificate?

In a nutshell, U.S. and Canadian citizens older than 16 years old have to show a passport, passport card or another accepted document to cross back into the U.S. Children under 16 may show an original or copy of their birth certificate, a Consular Report of Birth Abroad, a Naturalization Certificate, a Canadian ...

Guarding Canada-US illegal border crossings

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