Index: newforms/fields.py
===================================================================
--- newforms/fields.py	(revision 5753)
+++ newforms/fields.py	(working copy)
@@ -101,12 +101,14 @@
         return {}
 
 class CharField(Field):
-    def __init__(self, max_length=None, min_length=None, *args, **kwargs):
-        self.max_length, self.min_length = max_length, min_length
+    def __init__(self, max_length=None, min_length=None, strip=False, *args, **kwargs):
+        self.max_length, self.min_length, self.strip = max_length, min_length, strip
         super(CharField, self).__init__(*args, **kwargs)
 
     def clean(self, value):
         "Validates max_length and min_length. Returns a Unicode object."
+        if self.strip:
+            value = value.strip()
         super(CharField, self).clean(value)
         if value in EMPTY_VALUES:
             return u''