In an article in the TLS, Toby Lustig points out that Einstein in a letter to the New York Times, a few months after the declaration of Israeli idependence:

wrote to complain of 'one of the most disturbing phenomena of our times' - the new Israeli Freedom Party, (also a precursor to today's Likud) which he described as 'closely akin in its organisation, methods and political philosophy and social appeal to the Nazi and Fascist parties'.

What specifically was Einstein referring to in his letter, is this made clear in the letter itself, or in any later correspondance or articles Einstein wrote?

In a blog published in the TLS, May 2016, Toby Lustig points out that Einstein in a letter to the New York Times, a few months after the declaration of Israeli idependence:

wrote to complain of 'one of the most disturbing phenomena of our times' - the new Israeli Freedom Party, (also a precursor to today's Likud) which he described as 'closely akin in its organisation, methods and political philosophy and social appeal to the Nazi and Fascist parties'.

Toby Lustig himself was writing in the aftermath of a political scandal where Ken Livingstone had stated that the Nazi party had supported Zionism; In his blog, he points out there is evidence that justifies such a claim, but not categorically so; the Nazi Party supported Zionism, in so far as it lead to emigration of the Jewish people out of the nations of Europe but not so far as for them to establish an independent Jewish state.

My concern is with what specifically prompted Einstein to make the complaint that he did; did he refer to this in his letter, or is it made clear in any later correspondance or articles Einstein wrote?