Crossing into USA from Canada

I am a landed immigrant in canada and i applied US Visitor's visa twice councillor rejected my visa stating that i dont have strong ties with canada.
Now after 2 yrs am a canadian citizen and planning visit US.
Can i still go to US and at the port of entry do they check my background that i got rejected visa twice..
In case if i find a job can they still approve my TN Visa.
Kindly reply

I would make sure you have your Canadian citizenship card when you cross the border. I think that's required.

Why don't you give the nearest US consulate a call? They'd know best! Just explain the situation, it'll probably be fine.

Good luck!

I think the moderator means your PR Card. (Permanent Resident Card).

I'm curious as to how you were able to obtain your citzenship so quickly. Normally you need to be a resident for 3 years and then the processing time can take up to another year.

For more info on how to get your PR Card you can check out the government website.

http://www.cic.gc.ca/english/index.html

If you had issues in getting visitor visa earlier, that may be an issue in getting TN visa provided your qualification and job offers are genuine.

Can I go to the border crossing for a TN-1 visa and then immediately cross back into Canada to later leave for the US with my belongings? Are multiple entries into the US allowed on a TN-1 visa?

Yes, it is a multiple entry visa. Do Not surrender your I-94 until the expiration date.