From what I have researched, There are more Clovis sites in the East than in the West. Better minds than mine surmise that the Clovis Culture was a direct decedent of the Saloutrian Culture of Western Europe. Their points, found both in Europe and here in North America, Resemble each other greatly. More research is being done on the Atlantic Route of migration, and blowing the Beringia only scholars theories out of the water. I feel that Clovis originated on this Continent from technology brought over from Europe...
That being said, they are also looking at Clovis People and Asiatic People to see how far back the blending of their Genomes goes, as Clovis seems to have disappeared to an extent, and they are stating that the two Cultures merged to form the Modern Indian Genome...Closest relatives to both are the Eastern Sioux...Interesting times with the advent of modern science and DNA technology...Stay Tuned