Do men and women disagree over politics? We comprehensively examine the gender gap in mass public opinion in Western democracies over time using a new and extensive dataset (~6.5 million observations) of issue attitudes and issue salience over 50 years, across 23 issues in 14 countries. Contrary to common beliefs and a lively public debate about a growing gender gap in central policy areas, we find no evidence of an increasing gender gap over time and no substantial differences in issue positions between men and women. Instead, we ask whether the gender gap arises as men and women differ in how important they find different policy areas (issue salience), but we neither find substantial differences in the salience men and women assign to important policy issues, nor a trend towards an increasing gender gap in issue salience.