Nat Rothschild, the financier at the centre of allegations that threaten to engulf the shadow Chancellor, George Osborne, is no stranger to laws which forbid politicians from accepting donations from abroad.
Political donations from overseas are also illegal in the US, where John McCain's campaign team is under investigation for allegedly accepting a benefit in kind from two mega-rich British citizens, namely Nat Rothschild and his father, Jacob, the Fourth Baron Rothschild.
