Is lying to employees in order to hire and then firing with no cause and no performance reviews ok?

To start, I had been lied to about the financial health and direction of my former employer when I inquired at my interview. I discovered this fact after I began and had access to the numbers. Nothing matched up or made logical sense. There were figures missing, similar reports with drastically different results and there were no actual numbers or projections for the regions. (Our former CEO - hired after me and fired before me - can verify these claims) They hired me at the end of June, relocated me at the end of September and let me go just a couple of days into November. Their reason was that my sales in my assigned state -FL - were low (I had been in the state for four weeks upon termination). They also gave unfounded claims by someone not affiliated with the company as grounds for dismissal as well. I never had a performance review with the company and the comments by the 'unaffiliated' individual had never been given until the day I was let go... and the comments were laughable. How can it be legal to lie to people to sign them on and then discard them on false grounds? This is not the first time this company has used people as their pawns...

Thank you