ASX 200 closes down 20 points to 8160 (-0.3%) as some pre-election nerves creeping in. Banks were steady as results loom, NAB the standout up 0.9% with the Big Bank Basket at $244.82 (). Other financials drifted lower, ASX down 1.1% and SQ2 off 0.1%. REITs mixed, SGP up 0.2% and CHC off 0.4%. Industrials under a little pressure, COL down 0.6% on its trading update, WOW continues to struggle, off 2.8%. TLS fell 0.3% with QAN off 0.6% and TWE down 2.0%. Tech mixed, WTC continued to bounce up 2....