Complex sentence: The economic burden of heavy taxes was tough for the Jews there, politically; the harassments from various enemies had increased, and they even managed to influence the Persian Government to order the stopping of the construction works of refortification of Jerusalem's City Walls.
Split into simpler sentences: The economic burden of heavy taxes was tough for the Jews there. Politically; the harassments from various enemies had increased, and they even managed to influence the Persian government to order the stopping of the construction works of refortification of Jerusalem's city walls.