Not my speculation...
http://www.breitbart.com/big-government/2016/01/08/ted-cruz-parents-canada-voters-list/
http://www.newsweek.com/ted-cruz-mother-birth-certificate-us-united-states-citizen-413530
Has this been proven in a court of law? No. Many state courts have determined he was a citizen and legal for the presidency. They only court not deciding was the supreme court or a federal court Donnie threatened to sue but did not have the guts to do it. Primarily because he said in the fall of 14 his lawyers concluded Cruz was legal.
So until you can provide legal decisions to the otherwise you are wasting your time.
As to all the articles you posted, you believe everything your read in the msm?